Square wave adsorptive stripping voltammetric determination of famotidine in urine

被引:57
|
作者
Skrzypek, S
Ciesielski, W
Sokolowski, A
Yilmaz, S
Kazmierczak, D
机构
[1] Univ Lodz, Dept Instrumental Anal, PL-90236 Lodz, Poland
[2] Canakkaled Onsekiz Mart Univ, Fac Sci & Arts, Dept Chem, Canakkale, Turkey
关键词
famotidine; square wave adsorptive stripping voltammetry; linear sweep adsorptive stripping voltammetry; urine; HPLC;
D O I
10.1016/j.talanta.2005.01.017
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Electrochemical studies of famotidine were carried out using voltammetric techniques: cyclic voltammetry, linear sweep and square wave adsorptive stripping voltammetry. The dependence of the current on pH, buffer concentration, nature of the buffer, and scan rate was investigated. The best results for the determination of famotidine were obtained in MOPS buffer solution at pH 6.7. This electroanalytical procedure enabled to determine famotidine in the concentration range 1 x 10(-9)-4 x 10(-8) mol L-1 by linear sweep adsorptive stripping voltammetry (LS AdSV) and 5 x 10(-10)-6 x 10(-8) mol L-1 by square wave adsorptive stripping voltammetry (SW AdSV). Repeatability, precision and accuracy of the developed methods were checked. The detection and quantification limits were found to be 1.8 x 10(-10) and 6.2 x 10(-10) mol L-1 for LS AdSV and 4.9 x 10(-11) and 1.6 x 10(-10) mol L-1 for SW AdSV, respectively. The method was applied for the determination of famotidine in urine. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:1146 / 1151
页数:6
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