摘要
制备了混合粘合剂碳糊电极并研究了利眠宁在该电极上的伏安特性．在０．０１０ｍｏｌ／ＬＨＣｌ溶液中，当有０．０１０％ＳＬＳ存在时，利眠宁在－０．８０Ｖ左右产生一灵敏的阴极溶出伏安峰．在－０．２０Ｖ处富集１５０ｓ，线性范围为３．０×１０－９～１．０×１０－７ｍｏｌ／Ｌ，检出限为５．０×１０－１０ｍｏｌ／Ｌ．循环伏安实验结果证实利眠宁在碳糊电极上的吸附为反应物吸附．
The mixed binder carbon paste electrode containing 71% graphite powder, 18% liquid paraffin and 11% glycerol was prepared. On the electrode, chlordiazepoxide yields a cathodic stripping voltammetric peak at -0.80V in a solution containing 0.010 mol/L HCl and 0.010% SLS. It can be used to determine chlordiazepoxide down to 5.0×10 -10 mol/L, the linear range being from 3.0×10 -9 -1.0×10 -7 mol/L. This method can be applied to the determination of chlordiazepoxide in serum samples.
出处
《分析科学学报》
CAS
CSCD
1998年第2期106-109,共4页
Journal of Analytical Science
