摘要
已知人尿中的硒主要以三甲基硒离子形式存在,国内外至今还没有人证实人尿中存在硒脲。本文设计了一种检验方法,称富集-化学分离-三氟乙酰酐衍生气相色谱法,首次证实人尿中硒脲的存在。此发现对阐明硒在人体中的代谢历程有重要意义。
A new method for the detection of trace sele-nourea has been established. At first,large amounts of urea and thiourea in human urine were isolated by ethanol dissolution .and then the residual selenourea was trifluoroacetylatcd and determined by GC-ECD. The detection limit for selenourea was 2. 5× 10-10g. Selenourea in human urine was found for the first time by this method.
出处
《色谱》
CAS
CSCD
北大核心
1993年第4期221-222,共2页
Chinese Journal of Chromatography
