Development of an LC–MS/MS Method for the Analysis of Free Sphingoid Bases Using 4-Fluoro-7-nitrobenzofurazan (NBD-F)
作者:Toshiki Ishikawa、Hiroyuki Imai、Kawai-Yamada Maki
DOI:10.1007/s11745-013-3871-6
日期:2014.3
species of free sphingoid bases present in plant sphingolipids were separated and quantified for the first time; a complete baseline resolution was achieved for cis‐8 and trans‐8 isomers of sphingoid bases by reversed phase HPLC on a C18 column. The extraction and derivatization procedures and LC–MS/MS method can facilitate the progress of the studies for seeking the active components of sphingoid bases
鞘氨醇碱基的分子种类用荧光氨基试剂4-氟-7-硝基苯并呋喃(NBD-F)标记。通过高度选择性和灵敏的液相色谱-电喷雾电离串联质谱(LC-ESI-MS / MS)技术对NBD鞘氨醇碱基进行了分析,该技术能够可靠地检测几种fmol的衍生物。用NBD-F衍生化了植物样品中的脂质提取物,首次分离并定量了植物鞘脂中存在的所有9种游离鞘氨醇碱基;通过在C 18上进行反相HPLC可以实现鞘氨醇碱基的顺式8和反式8异构体的完整基线分离柱。提取和衍生化步骤以及LC-MS / MS方法可以促进研究寻找鞘氨醇碱类物种的活性成分以应对生物学挑战的研究进展。