Determination of norfloxacin using a terbium-sensitized electrogenerated chemiluminescence method

被引:23
作者
Chen, SL
Liu, Y
Zhao, HC [1 ]
Jin, LP
Zhang, ZL
Zheng, YZ
机构
[1] Beijing Normal Univ, Dept Chem, Beijing 100875, Peoples R China
[2] Acad Sinica, Inst Biophys, Beijing 100101, Peoples R China
关键词
electrogenerated chemiluminescence; cyclic voltammetry; terbium; norfloxacin (NFLX); sodium sulphite;
D O I
10.1002/bio.876
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A simple electrogenerated chemiluminescence (ECL) analysis method for the determination of norfloxacin (NFLX) is reported. It is based on ECL produced by Na2SO3, which is sensitized by the Tb-NFLX complex. The relative ECL intensity of the Tb3+-NFLX-Na2SO3 system is proportional to the amount of NFLX. The optimized experimental conditions were investigated. The linear range and detection limit for NFLX were 1.0 x 10(-10)-8.0 X 10(-7) mol/L and 2.8 x 10(-11) mol/L, respectively. This method was successfully applied to the determination of NFLX in a capsule. NFLX in urine can be directly detected without pretreatment or separation. Copyright (C) 2005 John Wiley & Sons, Ltd.
引用
收藏
页码:20 / 25
页数:6
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