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Simultaneous determination of vitamin D metabolites 25(OH)D3 and 1α,25(OH)2D3 in human plasma using liquid chromatography tandem mass spectrometry
- Source :
- Journal of Mass Spectrometry and Advances in the Clinical Lab, Vol 24, Iss , Pp 65-79 (2022)
- Publication Year :
- 2022
- Publisher :
- Elsevier, 2022.
-
Abstract
- Background: Although measurement of 25(OH)D3 is a routine analytical method to determine plasma vitamin D status, 1α,25(OH)2D3 is the biologically active form. Hence, simultaneous measurement of 25(OH)D3 and 1α,25(OH)2D3 could provide better insight into vitamin D status and pharmacokinetics. However, 1α,25(OH)2D3 has a low plasma concentration, making its quantification challenging for most analytical techniques. Here, we demonstrate use of liquid chromatography tandem mass spectrometry (LC-MSMS) for the development of a simple and rapid method for the simultaneous quantification of 25(OH)D3 and 1α,25(OH)2D3. Methods: Samples were purified from 250 µL human plasma. Chromatography was performed on an analytical column, under gradient conditions using a mobile phase consisting of methanol-lithium acetate. The mass detector was operated in positive multiple reaction monitoring mode. The established method was validated according to the guidance issued by ICH and FDA. Furthermore, a clinical study was performed using this method to detect the plasma concentrations of 1α,25(OH)2D3 after oral administration of calcitriol. Results and conclusion: The method was acceptably linear over the concentration ranges of 20–1200 pg/mL for 1α,25(OH)2D3 and 1–60 ng/mL for 25(OH)D3, respectively, with correlation coefficients of r2 > 0.993. Both the inter-assay and intra-assay precision was
- Subjects :
- 25(OH)D3
1α
25(OH)2D3
LC-MS/MS
Pharmacokinetics
Plasma
Medical technology
R855-855.5
Subjects
Details
- Language :
- English
- ISSN :
- 2667145X
- Volume :
- 24
- Issue :
- 65-79
- Database :
- Directory of Open Access Journals
- Journal :
- Journal of Mass Spectrometry and Advances in the Clinical Lab
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.9a902ee5523c44229bd0329c329b24eb
- Document Type :
- article
- Full Text :
- https://doi.org/10.1016/j.jmsacl.2022.04.001