Ce(IV)-RhB-盐酸吡硫醇化学发光体系的研究  

Sdudy on chemiluminescence system of Ce(IV)-RhB-pyritinol hydrochloride

作　　者：何树华[1] 吕弋[2] 

机构地区：[1]涪陵师范学院化学系,重庆408005 [2]四川大学化学学院,成都610064

出　　处：《四川大学学报（自然科学版）》2007年第2期407-409,共3页Journal of Sichuan University(Natural Science Edition)

基　　金：重庆市教委科学研究项目(KJ051305)

摘　　要：研究发现,在酸性介质中,Ce（IV）可以氧化盐酸吡硫醇产生较弱的化学发光,罗丹明B可以大大增强此发光,且增加的发光强度与盐酸吡硫醇的质量浓度在0.1-10 mg·L^-1范围内呈良好的线性关系,由此建立了测定盐酸吡硫醇的流动注射化学发光新方法.对3 mg/L的盐酸吡硫醇连续平行测定11次,其相对标准偏差为2.8%,根据IUPAC建议,计算出该法的检出限为54μg/L（3σ）.该法已成功测定了盐酸吡硫醇片剂和针剂中盐酸吡硫醇含量,结果令人满意.A novel chemiluminescence system for the determination of pyritinol hydrochloride is the first described in this paper. It is based on the chemiluminescence reaction of pyritinol hydrochloride and Ce（IV） in the perchloric acid solution. The emission intensity can be enhanced greatly by RhB. The chemiluminescence intensity was proportional to pyritinol hydrochloride concentration over the range 0.1-10 mg· L^-1. The detection limit is 54 μg·μ^-1（3σ） and the relative standard deviation is 2.8% for 3 mg·L^-1 of pyritinol hydrochloride （n = 11）. The proposed method was successfully applied to the determination of pyritinol hydrochloride in tablets and in injections.

关 键 词：化学发光 流动注射 盐酸吡硫醇 

分 类 号：O65[理学—分析化学]