ADSORPTIVE STRIPPING VOLTAMMETRIC BEHAVIOR OF SULFAQUINOXALINE USING DIFFERENTIAL-PULSE AND SQUARE-WAVE TECHNIQUES

被引：5

作者：

BERZAS, JJ ^{[1
]}

RODRIGUEZ, J ^{[1
]}

LEMUS, JM ^{[1
]}

CASTANEDA, G ^{[1
]}

机构：

[1] UNIV CASTILLA LA MANCHA,FAC QUIM,DEPT QUIM ANALIT & TECNOL ALIMENTOS,E-13071 CIUDAD REAL,SPAIN

来源：

ANALYTICA CHIMICA ACTA | 1993年 / 273卷 / 1-2期

关键词：

POLAROGRAPHY; STRIPPING VOLTAMMETRY; VOLTAMMETRY; PHARMACEUTICALS; SULFAQUINOXALINE;

D O I：

10.1016/0003-2670(93)80179-O

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The adsorptive stripping voltammetric behaviour of sulphaquinoxaline (SQX) was studied by both square-wave and differential-pulse techniques, leading to two methods for its determination in aqueous samples and pharmaceutical formulations. The application of the square-wave mode for the stripping of adsorbed SQX proved to be more sensitive, yielding signals fifteen times larger than those obtained by applying a differential-pulse scan. The relative standard deviations obtained for concentration levels of SQX as low as 1.5 x 10(-6) M with square-wave and differential-pulse methods were 2.47% and 2.21% (n = 8), respectively.

引用

页码：369 / 375

页数：7

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