摘要
本文利用自制的毛细管电泳－电化学安培检测装置，以钴钛菁碳糊修饰电极为工作。电极，在中性磷酸体系缓冲溶液中，对四种羟胺和巯基类化合物的混合物进行了分离和测定，检测下限羟胺类化合物为５．０×１０－６ｍｏｌ／Ｌ巯基类化合物为１．０×１０－５ｍｏｌ／Ｌ。对实际尿样中的半胱氨酸进行检测，结果满意。
In this work, hydroxylamines and thiols were separated and detected by CE-EC method at a Co-phthalocyanine carbon paste chemically modified electrode in neutral phos- phate buffer. Detection limit for hydroxylamines and thilos is 5.0×10-8 mol/L and 1.0× 10-5 mol/L, respectively. Cysteine content in urine sample has also been successfully deter- mined.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1997年第3期322-325,共4页
Chinese Journal of Analytical Chemistry
关键词
CE
电化学检测
羟胺类
巯基类
半胱氨酸
Capillary electrophoresis
electrochemical detection
cobalt phthalocyanine car- bon paste chemically modified electrode
hydroxylamine
thiol
