Europium(III)-sensitized chemiluminescence determination of ibuprofen in pharmaceutical preparations and biological fluids

被引：6
作者：
Li, Dongdong [1 ]
Du, Jianxiu [1 ]
Lu, Jiuru [1 ]
机构：
[1] Shaanxi Normal Univ, Sch Chem & Mat Sci, Key Lab Analyt Chem Life Sci Shaanxi Prov, Xian 710062, Peoples R China
来源：
ANALYTICAL LETTERS | 2008年 / 41卷 / 08期
关键词：
chemiluminescence; europium(III) ion; ibuprofen;
D O I：
10.1080/00032710802119210
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Chemiluminescence reaction of the system containing europium(III) ion, KMnO4, Na2SO3, and ibuprofen was investigated for the determination of ibuprofen. The introduction of Eu(III) ion into the system of KMnO4-Na2SO3-ibuprofen caused a significant increase in the chemiluminescence signal. The increment of the chemiluminescence signal is proportional to ibuprofen concentration in the range of 5.0 x 10(-8) - 5.0 x 10(-6) g/ml with a detection limit of 1 x 10(-8) g/ml. The relative standard deviation for 1.0 x 10(-7) g/ml ibuprofen solution was 1.7% (n = 11). The proposed method was successfully applied to determine ibuprofen in tablets and human plasma.
引用
收藏
页码：1366 / 1374
页数：9
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