Skip to main content
Top
Published in: Reviews in Endocrine and Metabolic Disorders 2/2013

01-06-2013

Vitamin D and metabolites measurement by tandem mass spectrometry

Authors: Johannes M. W. van den Ouweland, Michael Vogeser, Silvia Bächer

Published in: Reviews in Endocrine and Metabolic Disorders | Issue 2/2013

Login to get access

Abstract

The prevalence of vitamin D deficiency in the general population has become a major public health problem. Vitamin D deficiency might have significant consequences not only to bone health but possibly to autoimmune-, infectious and cardiovascular disease. This has resulted in increased clinical testing for 25-hydroxyvitamin D (25(OH)D) in serum, as circulating 25(OH)D is regarded as the best indicator of adequate exposure to sunlight and dietary intake of vitamin D. There are reportedly over 50 vitamin D metabolites of which 25(OH)D and 1,25(OH)2D are well known to provide clinical information. More recently, there is increasing interest in measuring the C3-epimer of 25(OH)D, which has shown to contribute significantly to the 25(OH)D concentration, particularly in infant populations, and in 24,25(OH)2D, a major catabolite of 25(OH)D metabolism. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) is an analytical tool that allows the specific determination of all relevant vitamin D metabolites, with the potential of performing multiple analyte analysis in a single experimental setting, creating a vitamin D profile. This article reviews recent advances in the quantification of vitamin D metabolites using LC-MS/MS.
Literature
3.
go back to reference Sattar N, Welsh P, Panarelli M, Forouhi NG. Increasing requests for vitamin D measurement: costly, confusing, and without credibility. Lancet. 2012;379(9811):95–6.PubMedCrossRef Sattar N, Welsh P, Panarelli M, Forouhi NG. Increasing requests for vitamin D measurement: costly, confusing, and without credibility. Lancet. 2012;379(9811):95–6.PubMedCrossRef
6.
go back to reference Zerwekh JE. Blood biomarkers of vitamin D status. Am J Clin Nutr. 2008;87(4):1087S–91S.PubMed Zerwekh JE. Blood biomarkers of vitamin D status. Am J Clin Nutr. 2008;87(4):1087S–91S.PubMed
7.
go back to reference Wang TJ, Zhang F, Richards JB, Kestenbaum B, van Meurs JB, Berry D, et al. Common genetic determinants of vitamin D insufficiency: a genome-wide association study. Lancet. 2010;376(9736):180–8.PubMedCrossRef Wang TJ, Zhang F, Richards JB, Kestenbaum B, van Meurs JB, Berry D, et al. Common genetic determinants of vitamin D insufficiency: a genome-wide association study. Lancet. 2010;376(9736):180–8.PubMedCrossRef
8.
go back to reference Binkley N, Krueger D, Cowgill CS, Plum L, Lake E, Hansen KE, et al. Assay variation confounds the diagnosis of hypovitaminosis D: a call for standardization. J Clin Endocrinol Metab. 2004;89(7):3152–7. doi:10.1210/jc.2003-031979. Binkley N, Krueger D, Cowgill CS, Plum L, Lake E, Hansen KE, et al. Assay variation confounds the diagnosis of hypovitaminosis D: a call for standardization. J Clin Endocrinol Metab. 2004;89(7):3152–7. doi:10.​1210/​jc.​2003-031979.
9.
go back to reference Higashi T, Awada D, Shimada K. Simultaneous determination of 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3 in human plasma by liquid chromatography-tandem mass spectrometry employing derivatization with a Cookson-type reagent. Biol Pharm Bull. 2001;24(7):738–43. Higashi T, Awada D, Shimada K. Simultaneous determination of 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3 in human plasma by liquid chromatography-tandem mass spectrometry employing derivatization with a Cookson-type reagent. Biol Pharm Bull. 2001;24(7):738–43.
11.
go back to reference Stepman HC, Vanderroost A, Van Uytfanghe K, Thienpont LM. Candidate reference measurement procedures for serum 25-hydroxyvitamin D3 and 25-hydroxyvitamin D2 by using isotope-dilution liquid chromatography-tandem mass spectrometry. Clin Chem. 2011;57(3):441–8. doi:10.1373/clinchem.2010.152553.PubMedCrossRef Stepman HC, Vanderroost A, Van Uytfanghe K, Thienpont LM. Candidate reference measurement procedures for serum 25-hydroxyvitamin D3 and 25-hydroxyvitamin D2 by using isotope-dilution liquid chromatography-tandem mass spectrometry. Clin Chem. 2011;57(3):441–8. doi:10.​1373/​clinchem.​2010.​152553.PubMedCrossRef
12.
go back to reference Tai SS, Bedner M, Phinney KW. Development of a candidate reference measurement procedure for the determination of 25-hydroxyvitamin D3 and 25-hydroxyvitamin D2 in human serum using isotope-dilution liquid chromatography-tandem mass spectrometry. Anal Chem. 2010;82(5):1942–8. doi:10.1021/ac9026862. Tai SS, Bedner M, Phinney KW. Development of a candidate reference measurement procedure for the determination of 25-hydroxyvitamin D3 and 25-hydroxyvitamin D2 in human serum using isotope-dilution liquid chromatography-tandem mass spectrometry. Anal Chem. 2010;82(5):1942–8. doi:10.​1021/​ac9026862.
14.
go back to reference Adamec J, Jannasch A, Huang J, Hohman E, Fleet JC, Peacock M, et al. Development and optimization of an LC-MS/MS-based method for simultaneous quantification of vitamin D2, vitamin D3, 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3. J Sep Sci. 2011;34(1):11–20. doi:10.1002/jssc.201000410. Adamec J, Jannasch A, Huang J, Hohman E, Fleet JC, Peacock M, et al. Development and optimization of an LC-MS/MS-based method for simultaneous quantification of vitamin D2, vitamin D3, 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3. J Sep Sci. 2011;34(1):11–20. doi:10.​1002/​jssc.​201000410.
15.
go back to reference Cai S-S, Syage JA. Comparison of atmospheric pressure photoionization, atmospheric pressure chemical ionization, and electrospray ionization mass spectrometry for analysis of lipids. Anal Chem. 2006;78(4):1191–9. doi:10.1021/ac0515834.PubMedCrossRef Cai S-S, Syage JA. Comparison of atmospheric pressure photoionization, atmospheric pressure chemical ionization, and electrospray ionization mass spectrometry for analysis of lipids. Anal Chem. 2006;78(4):1191–9. doi:10.​1021/​ac0515834.PubMedCrossRef
17.
go back to reference Mawer EB, Backhouse J, Holman CA, Lumb GA, Stanbury SW. The distribution and storage of vitamin D and its metabolites in human tissues. Clin Sci. 1972;43(3):413–31.PubMed Mawer EB, Backhouse J, Holman CA, Lumb GA, Stanbury SW. The distribution and storage of vitamin D and its metabolites in human tissues. Clin Sci. 1972;43(3):413–31.PubMed
18.
go back to reference Vieth R. The pharmacology of vitamin D. In: Feldman D, Pike JW, Adams JS, editors. Vitamin D. 3rd ed., Vol. Volume I. Academic Press, London, UK; 2011. pp. 1041–1066. Vieth R. The pharmacology of vitamin D. In: Feldman D, Pike JW, Adams JS, editors. Vitamin D. 3rd ed., Vol. Volume I. Academic Press, London, UK; 2011. pp. 1041–1066.
20.
21.
go back to reference Ross AC, Manson JE, Abrams SA, Aloia JF, Brannon PM, Clinton SK, et al. The 2011 report on dietary reference intakes for calcium and vitamin D from the Institute of Medicine: what clinicians need to know. J Clin Endocrinol Metab. 2011;96(1):53–8. doi:10.1210/jc.2010-2704.PubMedCrossRef Ross AC, Manson JE, Abrams SA, Aloia JF, Brannon PM, Clinton SK, et al. The 2011 report on dietary reference intakes for calcium and vitamin D from the Institute of Medicine: what clinicians need to know. J Clin Endocrinol Metab. 2011;96(1):53–8. doi:10.​1210/​jc.​2010-2704.PubMedCrossRef
22.
go back to reference Holick MF, Binkley NC, Bischoff-Ferrari HA, Gordon CM, Hanley DA, Heaney RP, et al. Evaluation, treatment, and prevention of vitamin D deficiency: an Endocrine Society clinical practice guideline. J Clin Endocrinol Metab. 2011;96(7):1911–30. doi:10.1210/jc.2011-0385. Holick MF, Binkley NC, Bischoff-Ferrari HA, Gordon CM, Hanley DA, Heaney RP, et al. Evaluation, treatment, and prevention of vitamin D deficiency: an Endocrine Society clinical practice guideline. J Clin Endocrinol Metab. 2011;96(7):1911–30. doi:10.​1210/​jc.​2011-0385.
25.
go back to reference van den Ouweland JM, Beijers AM, Demacker PN, van Daal H. Measurement of 25-OH-vitamin D in human serum using liquid chromatography tandem-mass spectrometry with comparison to radioimmunoassay and automated immunoassay. J Chromatogr B Anal Technol Biomed Life Sci. 2010;878(15–16):1163–8. doi:10.1016/j.jchromb.2010.03.035. van den Ouweland JM, Beijers AM, Demacker PN, van Daal H. Measurement of 25-OH-vitamin D in human serum using liquid chromatography tandem-mass spectrometry with comparison to radioimmunoassay and automated immunoassay. J Chromatogr B Anal Technol Biomed Life Sci. 2010;878(15–16):1163–8. doi:10.​1016/​j.​jchromb.​2010.​03.​035.
26.
go back to reference Roth HJ, Schmidt-Gayk H, Weber H, Niederau C. Accuracy and clinical implications of seven 25-hydroxyvitamin D methods compared with liquid chromatography-tandem mass spectrometry as a reference. Ann Clin Biochem. 2008;45(2):153–9. doi:10.1258/acb.2007.007091.PubMedCrossRef Roth HJ, Schmidt-Gayk H, Weber H, Niederau C. Accuracy and clinical implications of seven 25-hydroxyvitamin D methods compared with liquid chromatography-tandem mass spectrometry as a reference. Ann Clin Biochem. 2008;45(2):153–9. doi:10.​1258/​acb.​2007.​007091.PubMedCrossRef
27.
go back to reference Farrell C-JL, Martin S, McWhinney B, Straub I, Williams P, Herrmann M. State-of-the-Art vitamin D assays: a comparison of automated immunoassays with liquid chromatography-tandem mass spectrometry methods. Clin Chem. 2012;58(3):531–42. doi:10.1373/clinchem.2011.172155.PubMedCrossRef Farrell C-JL, Martin S, McWhinney B, Straub I, Williams P, Herrmann M. State-of-the-Art vitamin D assays: a comparison of automated immunoassays with liquid chromatography-tandem mass spectrometry methods. Clin Chem. 2012;58(3):531–42. doi:10.​1373/​clinchem.​2011.​172155.PubMedCrossRef
32.
go back to reference Higashi T, Shimada K, Toyo’oka T. Advances in determination of vitamin D related compounds in biological samples using liquid chromatography-mass spectrometry: a review. [Review]. J Chromatogr B Anal Technol Biomed Life Sci. 2010;878(20):1654–61. doi:10.1016/j.jchromb.2009.11.026.CrossRef Higashi T, Shimada K, Toyo’oka T. Advances in determination of vitamin D related compounds in biological samples using liquid chromatography-mass spectrometry: a review. [Review]. J Chromatogr B Anal Technol Biomed Life Sci. 2010;878(20):1654–61. doi:10.​1016/​j.​jchromb.​2009.​11.​026.CrossRef
35.
go back to reference Bogusz MJ, Al Enazi E, Tahtamoni M, Jawaad JA, Al Tufail M. Determination of serum vitamins 25-OH-D2 and 25-OH-D3 with liquid chromatography-tandem mass spectrometry using atmospheric pressure chemical ionization or electrospray source and core-shell or sub-2 mum particle columns: a comparative study. Clin Biochem. 2011;44(16):1329–37. doi:10.1016/j.clinbiochem.2011.08.1134.PubMedCrossRef Bogusz MJ, Al Enazi E, Tahtamoni M, Jawaad JA, Al Tufail M. Determination of serum vitamins 25-OH-D2 and 25-OH-D3 with liquid chromatography-tandem mass spectrometry using atmospheric pressure chemical ionization or electrospray source and core-shell or sub-2 mum particle columns: a comparative study. Clin Biochem. 2011;44(16):1329–37. doi:10.​1016/​j.​clinbiochem.​2011.​08.​1134.PubMedCrossRef
37.
go back to reference Musteata ML, Musteata FM. Overview of extraction methods for analysis of vitamin D and its metabolites in biological samples. Bioanalysis. 2011;3(17):1987–2002. doi:10.4155/bio.11.195. Musteata ML, Musteata FM. Overview of extraction methods for analysis of vitamin D and its metabolites in biological samples. Bioanalysis. 2011;3(17):1987–2002. doi:10.​4155/​bio.​11.​195.
40.
go back to reference Higashi T, Shibayama Y, Fuji M, Shimada K. Liquid chromatography-tandem mass spectrometric method for the determination of salivary 25-hydroxyvitamin D3: a noninvasive tool for the assessment of vitamin D status. Anal Bioanal Chem. 2008;391(1):229–38. doi:10.1007/s00216-007-1780-3. Higashi T, Shibayama Y, Fuji M, Shimada K. Liquid chromatography-tandem mass spectrometric method for the determination of salivary 25-hydroxyvitamin D3: a noninvasive tool for the assessment of vitamin D status. Anal Bioanal Chem. 2008;391(1):229–38. doi:10.​1007/​s00216-007-1780-3.
41.
go back to reference Higashi T, Suzuki M, Hanai J, Inagaki S, Min JZ, Shimada K, et al. A specific LC/ESI-MS/MS method for determination of 25-hydroxyvitamin D3 in neonatal dried blood spots containing a potential interfering metabolite, 3-epi-25-hydroxyvitamin D3. J Sep Sci. 2011;34(7):725–32. doi:10.1002/jssc.201000911. Higashi T, Suzuki M, Hanai J, Inagaki S, Min JZ, Shimada K, et al. A specific LC/ESI-MS/MS method for determination of 25-hydroxyvitamin D3 in neonatal dried blood spots containing a potential interfering metabolite, 3-epi-25-hydroxyvitamin D3. J Sep Sci. 2011;34(7):725–32. doi:10.​1002/​jssc.​201000911.
43.
go back to reference Saenger AK, Laha TJ, Bremner DE, Sadrzadeh SM. Quantification of serum 25-hydroxyvitamin D(2) and D(3) using HPLC-tandem mass spectrometry and examination of reference intervals for diagnosis of vitamin D deficiency. Am J Clin Pathol. 2006;125(6):914–20. doi:10.1309/J32U-F7GT-QPWN-25AP. Saenger AK, Laha TJ, Bremner DE, Sadrzadeh SM. Quantification of serum 25-hydroxyvitamin D(2) and D(3) using HPLC-tandem mass spectrometry and examination of reference intervals for diagnosis of vitamin D deficiency. Am J Clin Pathol. 2006;125(6):914–20. doi:10.​1309/​J32U-F7GT-QPWN-25AP.
44.
go back to reference Bunch DR, Miller AY, Wang S. Development and validation of a liquid chromatography-tandem mass spectrometry assay for serum 25-hydroxyvitamin D2/D3 using a turbulent flow online extraction technology. Clin Chem Lab Med. 2009;47(12):1565–72.PubMedCrossRef Bunch DR, Miller AY, Wang S. Development and validation of a liquid chromatography-tandem mass spectrometry assay for serum 25-hydroxyvitamin D2/D3 using a turbulent flow online extraction technology. Clin Chem Lab Med. 2009;47(12):1565–72.PubMedCrossRef
45.
go back to reference Thibeault D, Caron N, Djiana R, Kremer R, Blank D. Development and optimization of simplified LC-MS/MS quantification of 25-hydroxyvitamin D using protein precipitation combined with on-line solid phase extraction (SPE). J Chromatogr B. 2012;883–884:120–7. doi:10.1016/j.jchromb.2011.12.021.CrossRef Thibeault D, Caron N, Djiana R, Kremer R, Blank D. Development and optimization of simplified LC-MS/MS quantification of 25-hydroxyvitamin D using protein precipitation combined with on-line solid phase extraction (SPE). J Chromatogr B. 2012;883–884:120–7. doi:10.​1016/​j.​jchromb.​2011.​12.​021.CrossRef
46.
go back to reference Kushnir MM, Ray JA, Rockwood AL, Roberts WL, La’ulu SL, Whittington JE, et al. Rapid analysis of 25-hydroxyvitamin D2 and D3 by liquid chromatography-tandem mass spectrometry and association of vitamin D and parathyroid hormone concentrations in healthy adults. Am J Clin Pathol. 2010;134(1):148–56. doi:10.1309/ajcppia7dfbt4gks.PubMedCrossRef Kushnir MM, Ray JA, Rockwood AL, Roberts WL, La’ulu SL, Whittington JE, et al. Rapid analysis of 25-hydroxyvitamin D2 and D3 by liquid chromatography-tandem mass spectrometry and association of vitamin D and parathyroid hormone concentrations in healthy adults. Am J Clin Pathol. 2010;134(1):148–56. doi:10.​1309/​ajcppia7dfbt4gks​.PubMedCrossRef
47.
go back to reference Yuan C, Kosewick J, He X, Kozak M, Wang S. Sensitive measurement of serum 1α,25-dihydroxyvitamin D by liquid chromatography/tandem mass spectrometry after removing interference with immunoaffinity extraction. Rapid Commun Mass Spectrom. 2011;25(9):1241–9. doi:10.1002/rcm.4988.PubMedCrossRef Yuan C, Kosewick J, He X, Kozak M, Wang S. Sensitive measurement of serum 1α,25-dihydroxyvitamin D by liquid chromatography/tandem mass spectrometry after removing interference with immunoaffinity extraction. Rapid Commun Mass Spectrom. 2011;25(9):1241–9. doi:10.​1002/​rcm.​4988.PubMedCrossRef
48.
go back to reference Chen H, McCoy LF, Schleicher RL, Pfeiffer CM. Measurement of 25-hydroxyvitamin D3 (25OHD3) and 25-hydroxyvitamin D2 (25OHD2) in human serum using liquid chromatography-tandem mass spectrometry and its comparison to a radioimmunoassay method. Clin Chim Acta. 2008;391(1–2):6–12. doi:10.1016/j.cca.2008.01.017. Chen H, McCoy LF, Schleicher RL, Pfeiffer CM. Measurement of 25-hydroxyvitamin D3 (25OHD3) and 25-hydroxyvitamin D2 (25OHD2) in human serum using liquid chromatography-tandem mass spectrometry and its comparison to a radioimmunoassay method. Clin Chim Acta. 2008;391(1–2):6–12. doi:10.​1016/​j.​cca.​2008.​01.​017.
49.
go back to reference Duan X, Weinstock-Guttman B, Wang H, Bang E, Li J, Ramanathan M, et al. Ultrasensitive quantification of serum vitamin D metabolites using selective solid-phase extraction coupled to microflow liquid chromatography and isotope-dilution mass spectrometry. Anal Chem. 2010;82(6):2488–97. doi:10.1021/ac902869y. Duan X, Weinstock-Guttman B, Wang H, Bang E, Li J, Ramanathan M, et al. Ultrasensitive quantification of serum vitamin D metabolites using selective solid-phase extraction coupled to microflow liquid chromatography and isotope-dilution mass spectrometry. Anal Chem. 2010;82(6):2488–97. doi:10.​1021/​ac902869y.
50.
go back to reference Maunsell Z, Wright DJ, Rainbow SJ. Routine isotope-dilution liquid chromatography-tandem mass spectrometry assay for simultaneous measurement of the 25-hydroxy metabolites of vitamins D2 and D3. Clin Chem. 2005;51(9):1683–90. doi:10.1373/clinchem.2005.052936. Maunsell Z, Wright DJ, Rainbow SJ. Routine isotope-dilution liquid chromatography-tandem mass spectrometry assay for simultaneous measurement of the 25-hydroxy metabolites of vitamins D2 and D3. Clin Chem. 2005;51(9):1683–90. doi:10.​1373/​clinchem.​2005.​052936.
51.
go back to reference Knox S, Harris J, Calton L, Wallace AM. A simple automated solid-phase extraction procedure for measurement of 25-hydroxyvitamin D3 and D2 by liquid chromatography-tandem mass spectrometry. Ann Clin Biochem. 2009;46(Pt 3):226–30. doi:10.1258/acb.2009.008206.PubMedCrossRef Knox S, Harris J, Calton L, Wallace AM. A simple automated solid-phase extraction procedure for measurement of 25-hydroxyvitamin D3 and D2 by liquid chromatography-tandem mass spectrometry. Ann Clin Biochem. 2009;46(Pt 3):226–30. doi:10.​1258/​acb.​2009.​008206.PubMedCrossRef
52.
go back to reference Netzel BC, Cradic KW, Bro ET, Girtman AB, Cyr RC, Singh RJ, et al. Increasing liquid chromatography-tandem mass spectrometry throughput by mass tagging: a sample-multiplexed high-throughput assay for 25-hydroxyvitamin D2 and D3. Clin Chem. 2011;57(3):431–40. doi:10.1373/clinchem.2010.157115.PubMedCrossRef Netzel BC, Cradic KW, Bro ET, Girtman AB, Cyr RC, Singh RJ, et al. Increasing liquid chromatography-tandem mass spectrometry throughput by mass tagging: a sample-multiplexed high-throughput assay for 25-hydroxyvitamin D2 and D3. Clin Chem. 2011;57(3):431–40. doi:10.​1373/​clinchem.​2010.​157115.PubMedCrossRef
53.
go back to reference Højskov CS, Heickendorff L, Møller HJ. High-throughput liquid-liquid extraction and LCMSMS assay for determination of circulating 25(OH) vitamin D3 and D2 in the routine clinical laboratory. Clin Chim Acta. 2010;411(1–2):114–6. doi:10.1016/j.cca.2009.10.010.PubMedCrossRef Højskov CS, Heickendorff L, Møller HJ. High-throughput liquid-liquid extraction and LCMSMS assay for determination of circulating 25(OH) vitamin D3 and D2 in the routine clinical laboratory. Clin Chim Acta. 2010;411(1–2):114–6. doi:10.​1016/​j.​cca.​2009.​10.​010.PubMedCrossRef
54.
go back to reference Jones G, Prosser DE. The activating enzymes of vitamin D metabolism (25- and 1alpha-Hydroxylases). In: Feldman D, Pike JW, Adams JS, editors. Vitamin D, Vol. Volume I. Academic Press, London, UK; 2011. pp. 23–42. Jones G, Prosser DE. The activating enzymes of vitamin D metabolism (25- and 1alpha-Hydroxylases). In: Feldman D, Pike JW, Adams JS, editors. Vitamin D, Vol. Volume I. Academic Press, London, UK; 2011. pp. 23–42.
55.
go back to reference Strathmann FG, Laha TJ, Hoofnagle AN. Quantification of 1alpha,25-dihydroxy vitamin D by immunoextraction and liquid chromatography-tandem mass spectrometry. Clin Chem. 2011;57(9):1279–85. doi:10.1373/clinchem.2010.161174. Strathmann FG, Laha TJ, Hoofnagle AN. Quantification of 1alpha,25-dihydroxy vitamin D by immunoextraction and liquid chromatography-tandem mass spectrometry. Clin Chem. 2011;57(9):1279–85. doi:10.​1373/​clinchem.​2010.​161174.
56.
go back to reference Brumbaugh PF, Haussler DH, Bursac KM, Haussler MR. Filter assay for 1alpha, 25-dihydroxyvitamin D3. Utilization of the hormone’s target tissue chromatin receptor. Biochemistry. 1974;13(20):4091–7. Brumbaugh PF, Haussler DH, Bursac KM, Haussler MR. Filter assay for 1alpha, 25-dihydroxyvitamin D3. Utilization of the hormone’s target tissue chromatin receptor. Biochemistry. 1974;13(20):4091–7.
57.
go back to reference Hollis BW. 1,25-Dihydroxyvitamin D3-26,23-lactone interferes in determination of 1,25-dihydroxyvitamin D by RIA after immunoextraction. Clin Chem. 1995;41(9):1313–4.PubMed Hollis BW. 1,25-Dihydroxyvitamin D3-26,23-lactone interferes in determination of 1,25-dihydroxyvitamin D by RIA after immunoextraction. Clin Chem. 1995;41(9):1313–4.PubMed
58.
59.
go back to reference Casetta B, Jans I, Billen J, Vanderschueren D, Bouillon R. Development of a method for the quantification of 1alpha,25(OH)2-vitamin D3 in serum by liquid chromatography tandem mass spectrometry without derivatization. Eur J Mass Spectrom (Chichester, Eng). 2010;16(1):81–9. doi:10.1255/ejms.1024. Casetta B, Jans I, Billen J, Vanderschueren D, Bouillon R. Development of a method for the quantification of 1alpha,25(OH)2-vitamin D3 in serum by liquid chromatography tandem mass spectrometry without derivatization. Eur J Mass Spectrom (Chichester, Eng). 2010;16(1):81–9. doi:10.​1255/​ejms.​1024.
60.
go back to reference Aronov PA, Hall LM, Dettmer K, Stephensen CB, Hammock BD. Metabolic profiling of major vitamin D metabolites using Diels-Alder derivatization and ultra-performance liquid chromatography-tandem mass spectrometry. Anal Bioanal Chem. 2008;391(5):1917–30. doi:10.1007/s00216-008-2095-8. Aronov PA, Hall LM, Dettmer K, Stephensen CB, Hammock BD. Metabolic profiling of major vitamin D metabolites using Diels-Alder derivatization and ultra-performance liquid chromatography-tandem mass spectrometry. Anal Bioanal Chem. 2008;391(5):1917–30. doi:10.​1007/​s00216-008-2095-8.
61.
go back to reference Wang Z, Senn T, Kalhorn T, Zheng XE, Zheng S, Davis CL, et al. Simultaneous measurement of plasma vitamin D(3) metabolites, including 4beta,25-dihydroxyvitamin D(3), using liquid chromatography-tandem mass spectrometry. Anal Biochem. 2011;418(1):126–33. doi:10.1016/j.ab.2011.06.043. Wang Z, Senn T, Kalhorn T, Zheng XE, Zheng S, Davis CL, et al. Simultaneous measurement of plasma vitamin D(3) metabolites, including 4beta,25-dihydroxyvitamin D(3), using liquid chromatography-tandem mass spectrometry. Anal Biochem. 2011;418(1):126–33. doi:10.​1016/​j.​ab.​2011.​06.​043.
62.
go back to reference Ding S, Schoenmakers I, Jones K, Koulman A, Prentice A, Volmer DA. Quantitative determination of vitamin D metabolites in plasma using UHPLC-MS/MS. Anal Bioanal Chem. 2010;398(2):779–89. doi:10.1007/s00216-010-3993-0. Ding S, Schoenmakers I, Jones K, Koulman A, Prentice A, Volmer DA. Quantitative determination of vitamin D metabolites in plasma using UHPLC-MS/MS. Anal Bioanal Chem. 2010;398(2):779–89. doi:10.​1007/​s00216-010-3993-0.
63.
go back to reference Tsikas D. Quantitative analysis of biomarkers, drugs and toxins in biological samples by immunoaffinity chromatography coupled to mass spectrometry or tandem mass spectrometry: A focused review of recent applications. J Chromatogr B. 2010;878(2):133–48. doi:10.1016/j.jchromb.2009.11.008.CrossRef Tsikas D. Quantitative analysis of biomarkers, drugs and toxins in biological samples by immunoaffinity chromatography coupled to mass spectrometry or tandem mass spectrometry: A focused review of recent applications. J Chromatogr B. 2010;878(2):133–48. doi:10.​1016/​j.​jchromb.​2009.​11.​008.CrossRef
64.
65.
go back to reference Brown AJ, Ritter C, Slatopolsky E, Muralidharan KR, Okamura WH, Reddy GS. 1α,25-Dihydroxy-3-Epi-vitamin D3, a natural metabolite of 1α,25-dihydroxyvitamin D3, is a potent suppressor of parathyroid hormone secretion. J Cell Biochem. 1999;73(1):106–13. doi:10.1002/(sici)1097-4644(19990401)73:1<106::aid-jcb12>3.0.co;2-q.PubMedCrossRef Brown AJ, Ritter C, Slatopolsky E, Muralidharan KR, Okamura WH, Reddy GS. 1α,25-Dihydroxy-3-Epi-vitamin D3, a natural metabolite of 1α,25-dihydroxyvitamin D3, is a potent suppressor of parathyroid hormone secretion. J Cell Biochem. 1999;73(1):106–13. doi:10.1002/(sici)1097-4644(19990401)73:1<106::aid-jcb12>3.0.co;2-q.PubMedCrossRef
66.
go back to reference Fleet JC, Bradley J, Reddy GS, Ray R, Wood RJ. 1 alpha,25-(OH)2-vitamin D3 analogs with minimal in vivo calcemic activity can stimulate significant transepithelial calcium transport and mRNA expression in vitro. Arch Biochem Biophys. 1996;329(2):228–34. doi:10.1006/abbi.1996.0213. Fleet JC, Bradley J, Reddy GS, Ray R, Wood RJ. 1 alpha,25-(OH)2-vitamin D3 analogs with minimal in vivo calcemic activity can stimulate significant transepithelial calcium transport and mRNA expression in vitro. Arch Biochem Biophys. 1996;329(2):228–34. doi:10.​1006/​abbi.​1996.​0213.
67.
go back to reference Singh RJ, Taylor RL, Reddy GS, Grebe SK. C-3 epimers can account for a significant proportion of total circulating 25-hydroxyvitamin D in infants, complicating accurate measurement and interpretation of vitamin D status. J Clin Endocrinol Metab. 2006;91(8):3055–61. doi:10.1210/jc.2006-0710.PubMedCrossRef Singh RJ, Taylor RL, Reddy GS, Grebe SK. C-3 epimers can account for a significant proportion of total circulating 25-hydroxyvitamin D in infants, complicating accurate measurement and interpretation of vitamin D status. J Clin Endocrinol Metab. 2006;91(8):3055–61. doi:10.​1210/​jc.​2006-0710.PubMedCrossRef
69.
go back to reference van den Ouweland JMW, Beijers AM, van Daal H. Fast separation of 25-hydroxyvitamin D3 from 3-Epi-25-hydroxyvitamin D3 in human serum by liquid chromatography–tandem mass spectrometry: variable prevalence of 3-Epi-25-hydroxyvitamin D3 in infants, children, and adults. Clin Chem. 2011;57(11):1618–9. doi:10.1373/clinchem.2011.170282.PubMedCrossRef van den Ouweland JMW, Beijers AM, van Daal H. Fast separation of 25-hydroxyvitamin D3 from 3-Epi-25-hydroxyvitamin D3 in human serum by liquid chromatography–tandem mass spectrometry: variable prevalence of 3-Epi-25-hydroxyvitamin D3 in infants, children, and adults. Clin Chem. 2011;57(11):1618–9. doi:10.​1373/​clinchem.​2011.​170282.PubMedCrossRef
70.
71.
go back to reference Schleicher RL, Encisco SE, Chaudhary-Webb M, Paliakov E, McCoy LF, Pfeiffer CM. Isotope dilution ultra performance liquid chromatography-tandem mass spectrometry method for simultaneous measurement of 25-hydroxyvitamin D2, 25-hydroxyvitamin D3 and 3-epi-25-hydroxyvitamin D3 in human serum. Clin Chim Acta. 2011;412(17–18):1594–9. doi:10.1016/j.cca.2011.05.010. Schleicher RL, Encisco SE, Chaudhary-Webb M, Paliakov E, McCoy LF, Pfeiffer CM. Isotope dilution ultra performance liquid chromatography-tandem mass spectrometry method for simultaneous measurement of 25-hydroxyvitamin D2, 25-hydroxyvitamin D3 and 3-epi-25-hydroxyvitamin D3 in human serum. Clin Chim Acta. 2011;412(17–18):1594–9. doi:10.​1016/​j.​cca.​2011.​05.​010.
72.
go back to reference Keevil B. Does the presence of 3-epi-25OHD(3) affect the routine measurement of vitamin D using liquid chromatography tandem mass spectrometry? Clin Chem Lab Med. 2011. doi:10.1515/CCLM.2011.755. Keevil B. Does the presence of 3-epi-25OHD(3) affect the routine measurement of vitamin D using liquid chromatography tandem mass spectrometry? Clin Chem Lab Med. 2011. doi:10.​1515/​CCLM.​2011.​755.
74.
75.
go back to reference Baecher S, Leinenbach A, Wright JA, Pongratz S, Kobold U, Thiele R. Simultaneous quantification of four vitamin D metabolites in human serum using high performance liquid chromatography tandem mass spectrometry for vitamin D profiling. Clin Biochem. 2012. doi:10.1016/j.clinbiochem.2012.06.030. Baecher S, Leinenbach A, Wright JA, Pongratz S, Kobold U, Thiele R. Simultaneous quantification of four vitamin D metabolites in human serum using high performance liquid chromatography tandem mass spectrometry for vitamin D profiling. Clin Biochem. 2012. doi:10.​1016/​j.​clinbiochem.​2012.​06.​030.
77.
go back to reference St-Arnaud R, Arabian A, Travers R, Barletta F, Raval-Pandya M, Chapin K, et al. Deficient mineralization of intramembranous bone in vitamin D-24-hydroxylase-ablated mice is Due to elevated 1,25-dihydroxyvitamin D and Not to the absence of 24,25-dihydroxyvitamin D. Endocrinology. 2000;141(7):2658–66. doi:10.1210/en.141.7.2658.PubMedCrossRef St-Arnaud R, Arabian A, Travers R, Barletta F, Raval-Pandya M, Chapin K, et al. Deficient mineralization of intramembranous bone in vitamin D-24-hydroxylase-ablated mice is Due to elevated 1,25-dihydroxyvitamin D and Not to the absence of 24,25-dihydroxyvitamin D. Endocrinology. 2000;141(7):2658–66. doi:10.​1210/​en.​141.​7.​2658.PubMedCrossRef
78.
go back to reference Schlingmann KP, Kaufmann M, Weber S, Irwin A, Goos C, John U, et al. Mutations in CYP24A1 and idiopathic infantile hypercalcemia. N Engl J Med. 2011;365(5):410–21. doi:10.1056/NEJMoa1103864. Schlingmann KP, Kaufmann M, Weber S, Irwin A, Goos C, John U, et al. Mutations in CYP24A1 and idiopathic infantile hypercalcemia. N Engl J Med. 2011;365(5):410–21. doi:10.​1056/​NEJMoa1103864.
79.
go back to reference Dauber A, Nguyen TT, Sochett E, Cole DE, Horst R, Abrams SA, et al. Genetic defect in CYP24A1, the vitamin D 24-hydroxylase gene, in a patient with severe infantile hypercalcemia. J Clin Endocrinol Metab. 2012;97(2):E268–74. doi:10.1210/jc.2011-1972. Dauber A, Nguyen TT, Sochett E, Cole DE, Horst R, Abrams SA, et al. Genetic defect in CYP24A1, the vitamin D 24-hydroxylase gene, in a patient with severe infantile hypercalcemia. J Clin Endocrinol Metab. 2012;97(2):E268–74. doi:10.​1210/​jc.​2011-1972.
81.
go back to reference Nakamura T, Kurokawa T, Orimo H. Increase of bone volume in vitamin D-repleted rats by massive administration of 24R,25(OH)2D3. Calcif Tissue Int. 1988;43(4):235–43.PubMedCrossRef Nakamura T, Kurokawa T, Orimo H. Increase of bone volume in vitamin D-repleted rats by massive administration of 24R,25(OH)2D3. Calcif Tissue Int. 1988;43(4):235–43.PubMedCrossRef
82.
go back to reference Nakamura T, Kurokawa T, Orimo H. Increased mechanical strength of the vitamin D-replete rat femur by the treatment with a large dose of 24R,25(OH)2D3. Bone. 1989;10(2):117–23.PubMedCrossRef Nakamura T, Kurokawa T, Orimo H. Increased mechanical strength of the vitamin D-replete rat femur by the treatment with a large dose of 24R,25(OH)2D3. Bone. 1989;10(2):117–23.PubMedCrossRef
83.
go back to reference Wagner D, Hanwell HE, Schnabl K, Yazdanpanah M, Kimball S, Fu L, et al. The ratio of serum 24,25-dihydroxyvitamin D(3) to 25-hydroxyvitamin D(3) is predictive of 25-hydroxyvitamin D(3) response to vitamin D(3) supplementation. J Steroid Biochem Mol Biol. 2011;126(3–5):72–7. doi:10.1016/j.jsbmb.2011.05.003. Wagner D, Hanwell HE, Schnabl K, Yazdanpanah M, Kimball S, Fu L, et al. The ratio of serum 24,25-dihydroxyvitamin D(3) to 25-hydroxyvitamin D(3) is predictive of 25-hydroxyvitamin D(3) response to vitamin D(3) supplementation. J Steroid Biochem Mol Biol. 2011;126(3–5):72–7. doi:10.​1016/​j.​jsbmb.​2011.​05.​003.
84.
go back to reference Horst RL, Littledike ET, Gray RW, Napoli JL. Impaired 24,25-dihydroxyvitamin D production in anephric human and pig. J Clin Invest. 1981;67(1):274–80. doi:10.1172/JCI110023. Horst RL, Littledike ET, Gray RW, Napoli JL. Impaired 24,25-dihydroxyvitamin D production in anephric human and pig. J Clin Invest. 1981;67(1):274–80. doi:10.​1172/​JCI110023.
85.
go back to reference Edouard T, Husseini A, Glorieux FH, Rauch F. Serum 24,25-dihydroxyvitamin D concentrations in osteogenesis imperfecta: relationship to bone parameters. J Clin Endocrinol Metab. 2012;97(4):1243–9. doi:10.1210/jc.2011-3015.PubMedCrossRef Edouard T, Husseini A, Glorieux FH, Rauch F. Serum 24,25-dihydroxyvitamin D concentrations in osteogenesis imperfecta: relationship to bone parameters. J Clin Endocrinol Metab. 2012;97(4):1243–9. doi:10.​1210/​jc.​2011-3015.PubMedCrossRef
86.
go back to reference Tanaka Y, Frank H, DeLuca HF, Koizumi N, Ikekawa N. Importance of the stereochemical position of the 24-hydroxyl to biological activity of 24-hydroxyvitamin D3. Biochemistry. 1975;14(15):3293–6. doi:10.1021/bi00686a001.PubMedCrossRef Tanaka Y, Frank H, DeLuca HF, Koizumi N, Ikekawa N. Importance of the stereochemical position of the 24-hydroxyl to biological activity of 24-hydroxyvitamin D3. Biochemistry. 1975;14(15):3293–6. doi:10.​1021/​bi00686a001.PubMedCrossRef
87.
go back to reference Tsugawa N, Suhara Y, Kamao M, Okano T. Determination of 25-hydroxyvitamin D in human plasma using high-performance liquid chromatography-tandem mass spectrometry. Anal Chem. 2005;77(9):3001–7. doi:10.1021/ac048249c. Tsugawa N, Suhara Y, Kamao M, Okano T. Determination of 25-hydroxyvitamin D in human plasma using high-performance liquid chromatography-tandem mass spectrometry. Anal Chem. 2005;77(9):3001–7. doi:10.​1021/​ac048249c.
88.
go back to reference Higashi T, Awada D, Shimada K. Determination of 24,25-dihydroxyvitamin D(3) in human plasma using liquid chromatography-mass spectrometry after derivatization with a Cookson-type reagent. Biomed Chromatogr. 2001;15(2):133–40. doi:10.1002/bmc.43. Higashi T, Awada D, Shimada K. Determination of 24,25-dihydroxyvitamin D(3) in human plasma using liquid chromatography-mass spectrometry after derivatization with a Cookson-type reagent. Biomed Chromatogr. 2001;15(2):133–40. doi:10.​1002/​bmc.​43.
92.
go back to reference Shiraishi A, Higashi S, Ohkawa H, Kubodera N, Hirasawa T, Ezawa I, et al. The advantage of alfacalcidol over vitamin D in the treatment of osteoporosis. Calcif Tissue Int. 1999;65(4):311–6. Shiraishi A, Higashi S, Ohkawa H, Kubodera N, Hirasawa T, Ezawa I, et al. The advantage of alfacalcidol over vitamin D in the treatment of osteoporosis. Calcif Tissue Int. 1999;65(4):311–6.
93.
go back to reference Napoli JL, Pramanik BC, Partridge JJ, Uskokovic MR, Horst RL. 23S,25-dihydroxyvitamin D3 as a circulating metabolite of vitamin D3. Its role in 25-hydroxyvitamin D3-26,23-lactone biosynthesis. J Biol Chem. 1982;257(16):9634–9. Napoli JL, Pramanik BC, Partridge JJ, Uskokovic MR, Horst RL. 23S,25-dihydroxyvitamin D3 as a circulating metabolite of vitamin D3. Its role in 25-hydroxyvitamin D3-26,23-lactone biosynthesis. J Biol Chem. 1982;257(16):9634–9.
94.
go back to reference Wichmann JK, DeLuca HF, Schnoes HK, Horst RL, Shepard RM, Jorgensen NA. 25-Hydroxyvitamin D3 26,23-lactone: a new in vivo metabolite of vitamin D. Biochemistry. 1979;18(22):4775–80. Wichmann JK, DeLuca HF, Schnoes HK, Horst RL, Shepard RM, Jorgensen NA. 25-Hydroxyvitamin D3 26,23-lactone: a new in vivo metabolite of vitamin D. Biochemistry. 1979;18(22):4775–80.
96.
go back to reference Eyles D, Anderson C, Ko P, Jones A, Thomas A, Burne T, et al. A sensitive LC/MS/MS assay of 25OH vitamin D3 and 25OH vitamin D2 in dried blood spots. Clin Chim Acta. 2009;403(1–2):145–51. doi:10.1016/j.cca.2009.02.005. Eyles D, Anderson C, Ko P, Jones A, Thomas A, Burne T, et al. A sensitive LC/MS/MS assay of 25OH vitamin D3 and 25OH vitamin D2 in dried blood spots. Clin Chim Acta. 2009;403(1–2):145–51. doi:10.​1016/​j.​cca.​2009.​02.​005.
97.
go back to reference Newman MS, Brandon TR, Groves MN, Gregory WL, Kapur S, Zava DT. A liquid chromatography/tandem mass spectrometry method for determination of 25-hydroxy vitamin D2 and 25-hydroxy vitamin D3 in dried blood spots: a potential adjunct to diabetes and cardiometabolic risk screening. J Diabetes Sci Technol. 2009;3(1):156–62.PubMed Newman MS, Brandon TR, Groves MN, Gregory WL, Kapur S, Zava DT. A liquid chromatography/tandem mass spectrometry method for determination of 25-hydroxy vitamin D2 and 25-hydroxy vitamin D3 in dried blood spots: a potential adjunct to diabetes and cardiometabolic risk screening. J Diabetes Sci Technol. 2009;3(1):156–62.PubMed
98.
go back to reference Hollis BW, Wagner CL. Vitamin D deficiency during pregnancy: an ongoing epidemic. [Comment Editorial]. Am J Clin Nutr. 2006;84(2):273.PubMed Hollis BW, Wagner CL. Vitamin D deficiency during pregnancy: an ongoing epidemic. [Comment Editorial]. Am J Clin Nutr. 2006;84(2):273.PubMed
99.
100.
go back to reference Bikle DD, Gee E, Halloran B, Kowalski MA, Ryzen E, Haddad JG. Assessment of the free fraction of 25-hydroxyvitamin D in serum and its regulation by albumin and the vitamin D-binding protein. J Clin Endocrinol Metab. 1986;63(4):954–9. Bikle DD, Gee E, Halloran B, Kowalski MA, Ryzen E, Haddad JG. Assessment of the free fraction of 25-hydroxyvitamin D in serum and its regulation by albumin and the vitamin D-binding protein. J Clin Endocrinol Metab. 1986;63(4):954–9.
101.
103.
go back to reference Fairney A, Saphier PW. Studies on the measurement of 25-hydroxy vitamin D in human saliva. Br J Nutr. 1987;57(1):13–25.PubMedCrossRef Fairney A, Saphier PW. Studies on the measurement of 25-hydroxy vitamin D in human saliva. Br J Nutr. 1987;57(1):13–25.PubMedCrossRef
104.
105.
go back to reference Sempos CT, Vesper HW, Phinney KW, Thienpont LM, Coates PM. Vitamin D status as an international issue: national surveys and the problem of standardization. Scand J Clin Lab Invest Suppl. 2012;243:32–40. doi:10.3109/00365513.2012.681935.PubMed Sempos CT, Vesper HW, Phinney KW, Thienpont LM, Coates PM. Vitamin D status as an international issue: national surveys and the problem of standardization. Scand J Clin Lab Invest Suppl. 2012;243:32–40. doi:10.​3109/​00365513.​2012.​681935.PubMed
106.
go back to reference Phinney KW. Development of a standard reference material for vitamin D in serum. [Review]. Am J Clin Nutr. 2008;88(2):511S–2S.PubMed Phinney KW. Development of a standard reference material for vitamin D in serum. [Review]. Am J Clin Nutr. 2008;88(2):511S–2S.PubMed
107.
go back to reference Phinney K, Bedner M, Tai SS, Vamathevan V, Sander LC, Sharpless KE, et al. Development and certification of a standard reference material for vitamin D metabolites in human serum. Anal Chem. 2011. doi:10.1021/ac202047n. Phinney K, Bedner M, Tai SS, Vamathevan V, Sander LC, Sharpless KE, et al. Development and certification of a standard reference material for vitamin D metabolites in human serum. Anal Chem. 2011. doi:10.​1021/​ac202047n.
108.
go back to reference Certificate of analysis, Standard Reference Material 2972: 25-hydroxyvitamin D2 and D3 calibration solutions. Gaithersburg, MD: Standard Reference Materials Program, NIST (2009). Certificate of analysis, Standard Reference Material 2972: 25-hydroxyvitamin D2 and D3 calibration solutions. Gaithersburg, MD: Standard Reference Materials Program, NIST (2009).
110.
go back to reference Yates AM, Bowron A, Calton L, Heynes J, Field H, Rainbow S, et al. Interlaboratory variation in 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3 is significantly improved if common calibration material is used. Clin Chem. 2008;54(12):2082–4. doi:10.1373/clinchem.2008.110452.PubMedCrossRef Yates AM, Bowron A, Calton L, Heynes J, Field H, Rainbow S, et al. Interlaboratory variation in 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3 is significantly improved if common calibration material is used. Clin Chem. 2008;54(12):2082–4. doi:10.​1373/​clinchem.​2008.​110452.PubMedCrossRef
111.
112.
go back to reference Carter GD. Accuracy of 25-hydroxyvitamin D assays: confronting the issues. [Review]. Curr Drug Targets. 2011;12(1):19–28.PubMedCrossRef Carter GD. Accuracy of 25-hydroxyvitamin D assays: confronting the issues. [Review]. Curr Drug Targets. 2011;12(1):19–28.PubMedCrossRef
113.
115.
go back to reference Liel Y, Ulmer E, Shary J, Hollis BW, Bell NH. Low circulating vitamin D in obesity. Calcif Tissue Int. 1988;43(4):199–201. Liel Y, Ulmer E, Shary J, Hollis BW, Bell NH. Low circulating vitamin D in obesity. Calcif Tissue Int. 1988;43(4):199–201.
116.
go back to reference Higashi T, Yamauchi A, Shimada K. Application of 4-(4-nitrophenyl)-1,2,4-triazoline-3,5-dione to analysis of 25-hydroxyvitamin D<SUB>3</SUB>in human plasma by liquid chromatography/electron capture atmospheric pressure chemical ionization-mass spectrometry. Anal Sci. 2003;19(6):941–3.PubMedCrossRef Higashi T, Yamauchi A, Shimada K. Application of 4-(4-nitrophenyl)-1,2,4-triazoline-3,5-dione to analysis of 25-hydroxyvitamin D<SUB>3</SUB>in human plasma by liquid chromatography/electron capture atmospheric pressure chemical ionization-mass spectrometry. Anal Sci. 2003;19(6):941–3.PubMedCrossRef
117.
go back to reference Gören AC, Bilsel G, Bilsel M. Rapid and simultaenous determination of 25-OH-vitamin D2 and D3 in human serum by LC/MS/MS: validation and uncertainty assessment. J Chem Metrl. 2007;1(1):1–9.CrossRef Gören AC, Bilsel G, Bilsel M. Rapid and simultaenous determination of 25-OH-vitamin D2 and D3 in human serum by LC/MS/MS: validation and uncertainty assessment. J Chem Metrl. 2007;1(1):1–9.CrossRef
118.
go back to reference Priego Capote F, Jiménez JR, Granados JMM, de Castro MDL. Identification and determination of fat-soluble vitamins and metabolites in human serum by liquid chromatography/triple quadrupole mass spectrometry with multiple reaction monitoring. Rapid Commun Mass Spectrom. 2007;21(11):1745–54. doi:10.1002/rcm.3014.PubMedCrossRef Priego Capote F, Jiménez JR, Granados JMM, de Castro MDL. Identification and determination of fat-soluble vitamins and metabolites in human serum by liquid chromatography/triple quadrupole mass spectrometry with multiple reaction monitoring. Rapid Commun Mass Spectrom. 2007;21(11):1745–54. doi:10.​1002/​rcm.​3014.PubMedCrossRef
119.
go back to reference Xie W, Chavez-Eng CM, Fang W, Constanzer ML, Matuszewski BK, Mullett WM, et al. Quantitative liquid chromatographic and tandem mass spectrometric determination of vitamin D3 in human serum with derivatization: a comparison of in-tube LLE, 96-well plate LLE and in-tip SPME. J Chromatogr B Anal Technol Biomed Life Sci. 2011;879(17–18):1457–66. doi:10.1016/j.jchromb.2011.03.018. Xie W, Chavez-Eng CM, Fang W, Constanzer ML, Matuszewski BK, Mullett WM, et al. Quantitative liquid chromatographic and tandem mass spectrometric determination of vitamin D3 in human serum with derivatization: a comparison of in-tube LLE, 96-well plate LLE and in-tip SPME. J Chromatogr B Anal Technol Biomed Life Sci. 2011;879(17–18):1457–66. doi:10.​1016/​j.​jchromb.​2011.​03.​018.
Metadata
Title
Vitamin D and metabolites measurement by tandem mass spectrometry
Authors
Johannes M. W. van den Ouweland
Michael Vogeser
Silvia Bächer
Publication date
01-06-2013
Publisher
Springer US
Published in
Reviews in Endocrine and Metabolic Disorders / Issue 2/2013
Print ISSN: 1389-9155
Electronic ISSN: 1573-2606
DOI
https://doi.org/10.1007/s11154-013-9241-0

Other articles of this Issue 2/2013

Reviews in Endocrine and Metabolic Disorders 2/2013 Go to the issue
Obesity Clinical Trial Summary

At a glance: The STEP trials

A round-up of the STEP phase 3 clinical trials evaluating semaglutide for weight loss in people with overweight or obesity.

Developed by: Springer Medicine

Highlights from the ACC 2024 Congress

Year in Review: Pediatric cardiology

Watch Dr. Anne Marie Valente present the last year's highlights in pediatric and congenital heart disease in the official ACC.24 Year in Review session.

Year in Review: Pulmonary vascular disease

The last year's highlights in pulmonary vascular disease are presented by Dr. Jane Leopold in this official video from ACC.24.

Year in Review: Valvular heart disease

Watch Prof. William Zoghbi present the last year's highlights in valvular heart disease from the official ACC.24 Year in Review session.

Year in Review: Heart failure and cardiomyopathies

Watch this official video from ACC.24. Dr. Biykem Bozkurt discusses last year's major advances in heart failure and cardiomyopathies.