Methods for detecting vitamin D metabolites by mass spectrometry

NJ Clarke, B Holmquist, GKJ Lee, RE Reitz - US Patent 9,880,180, 2018 - Google Patents
Provided are methods of detecting the presence or amount of a vitamin D metabolite in a
sample using mass spectrometry. The methods generally are directed to ionizing a vitamin D …

Analysis of vitamins D, their metabolites and analogues

HLJ Makin, G Jones, M Kaufmann, MJ Calverley - Steroid Analysis, 2010 - Springer
The analysis of vitamins D and their metabolites and analogues has been reviewed by us on
two occasions (Makin et al., 1995; Jones and Makin, 2000) over the last 10-15 years. In this …

Mass spectrometry of steroidal compounds in multiplexed patient samples

B Holmquist, N Clarke - US Patent 9,506,937, 2016 - Google Patents
US9506937B2 - Mass spectrometry of steroidal compounds in multiplexed patient samples -
Google Patents US9506937B2 - Mass spectrometry of steroidal compounds in multiplexed patient …

Mass spectrometry of steroidal compounds in multiplexed patient samples

B Holmquist, N Clarke - US Patent 10,955,424, 2021 - Google Patents
US10955424B2 - Mass spectrometry of steroidal compounds in multiplexed patient samples -
Google Patents US10955424B2 - Mass spectrometry of steroidal compounds in multiplexed …

Methods for detecting vitamin D metabolites by mass spectrometry

NJ Clarke, B Holmquist, GKJ Lee, RE Reitz - US Patent 10,935,558, 2021 - Google Patents
US10935558B2 - Methods for detecting vitamin D metabolites by mass spectrometry -
Google Patents US10935558B2 - Methods for detecting vitamin D metabolites by mass …

Methods for detecting dihydroxyvitamin D metabolites by mass spectrometry

B Holmquist, N Clarke, A Caston, RE Reitz - US Patent 11,650,216, 2023 - Google Patents
Provided are methods of detecting the presence or amount of a dihydroxyvitamin D
metabolite in a sample using mass spectrometry. The methods generally comprise ionizing …

Mass spectrometric determination of non-derivatized, non-metabolized vitamin D

B Holmquist, N Clarke - US Patent 11,549,954, 2023 - Google Patents
5, 795469 A 8/1998 Quinn et al. 59 16.523 A 6/1999 Yan et al. 59 19.368 A 7/1999 Quinn et
al. 5968367 A 10/1999 Quinn et al. 6, 107623 A 8/2000 Bateman et al. 6, 124, 137 A 9/2000 …

Methods for detecting vitamin D metabolites by mass spectrometry

NJ Clarke, B Holmquist, GKJ Lee, RE Reitz - US Patent 11,579,154, 2023 - Google Patents
Provided are methods of detecting the presence or amount of a vitamin D metabolite in a
sample using mass spectrometry. The methods generally directed to ionizing a vitamin D …

[PDF][PDF] Prevalencia de hipovitaminosis D e hiperparatiroidismo secundario en la Unidad de Lesionados Medulares de Gran Canaria: estudio preliminar

L Rivero González, JL Méndez Suárez… - … de Osteoporosis y …, 2013 - SciELO Espana
Resumen RIVERO GONZALEZ, L. et al. Prevalence of hypovitaminosis D and secondary
hyperparathyroidism in the Spinal Cord Injury Unit in Gran Canaria: preliminary study. Rev …

DEVELOPMENT OF VITAMIN D3 HPLC METHOD AND ITS APPLICATION IN BLOOD SERUM ANALYSIS OF WORKERS OF RADIATION AREA

S Tariq, S Roohi, R Zahoor, Z Iqbal… - Journal of liquid …, 2012 - Taylor & Francis
An improved reverse phase HPLC method was developed for the estimation of
cholecalciferol in blood serum followed by a preliminary study for the assessment of vitamin …