Mass Spectrometric Studies of Cocaine Disposition in Animals and Humans Using Stable Isotope-Labeled Analogues
作者:Satya P. Jindal、Theresa Lutz
DOI:10.1002/jps.2600781208
日期:1989.12
quantitated in the rat brain, plasma, and urine using stable isotope-labeled analogues as internal standards and selected ion monitoring (SIM) mass spectrometry. The pharmacokinetic profiles of 1a and 2 indicate half-lives of less than 20 min in the brain and plasma. These data are in good agreement with widely reported short-lived behavioral effects of cocaine.(ABSTRACT TRUNCATED AT 250 WORDS)
离子簇技术与气相色谱-质谱联用(GC-MS)用于鉴定和定量大鼠和人体内可卡因(1a)的主要代谢产物。在一个典型的实验中,给一只体重250克的雌性大鼠腹膜内注射20 mg / kg的1a,NCD3-可卡因(1b),OCD3-可卡因(1c)和4T2-可卡因(1d)的混合物。收集尿液,用有机溶剂萃取,并使用TLC和HPLC技术将其分离成几个部分。d在1d内处于代谢稳定位置的放射性可用于代谢物的分离,而氘标记为1(b + c),可创建一个人工同位素簇,通过质谱解释提供了代谢物的特异性鉴定。去甲可卡因(2),苯甲酰基去甲吗啡碱(3),N-羟基去甲可卡因(4),甲基去甲可卡因(5),在大鼠尿液和血浆中,苯甲酰基芽子碱(11),芽子碱甲酯(9),羟基可卡因(7),羟基甲氧基可卡因(10)和二甲氧基羟基可卡因(6)是1a的主要代谢产物。整个脑部分析显示大量未代谢的1a和2,微量的9a,5、7和10,以及痕