A novel caged Cookson‐type reagent toward a practical vitamin D derivatization method for mass spectrometric analyses
作者:Masahiko Seki、Makoto Sato、Masaki Takiwaki、Koji Takahashi、Yoshikuni Kikutani、Mamoru Satoh、Fumio Nomura、Yutaka Kuroda、Seketsu Fukuzawa
DOI:10.1002/rcm.8648
日期:2020.4.15
25-Hydroxylated vitamin D is the best marker for vitamin D (VD). Due to its low ionization efficiency, a Cookson-type reagent, 1,2,4-triazoline-3,5-dione (TAD), is used to improve the detection/quantification of VD metabolites by liquid chromatography/tandem mass spectrometry (LC/MS/MS). However, the high reactivity of TAD makes its solution stability low and inconvenient for practical use. We here describe
理性25羟基维生素D是维生素D(VD)的最佳标记。由于其电离效率低,Cookson型试剂1,2,4-三唑啉-3,5-二酮(TAD)用于改进液相色谱/串联质谱(LC)的VD代谢产物的检测/定量。 / MS / MS)。然而,TAD的高反应性使其溶液稳定性低并且在实际使用中不方便。我们在这里描述了一种新型笼式库克森型试剂的开发,并使用LC / MS / MS评估了其在血清中四种VD代谢物的定量和差异检测中的性能。方法用4-(4'-二甲基氨基苯基)-1,2,4-三唑烷-3,制备笼中的4-(4'-二甲基氨基苯基)-1,2,4-三唑啉-3,5-二酮(DAPTAD)类似物。 5-二酮 检查了它们的稳定性和反应性。使用了优化的笼状DAPTAD(14-(4-(二甲基氨基)苯基)-9-苯基-9,10-二氢-9,10- [1,2]上皮氮杂蒽-13,15-二酮,DAP-PA) VD代谢物的LC / MS / M