NDLI: Fast simultaneous determination of trimethoprim and sulfamethoxazole by capillary zone electrophoresis with capacitively coupled contactless conductivity detection.

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Fast simultaneous determination of trimethoprim and sulfamethoxazole by capillary zone electrophoresis with capacitively coupled contactless conductivity detection.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	da Silva, Iranaldo Santos Vidal, Denis Tadeu Rajh Do Lago, Claudimir Lucio Angnes, Lúcio
Description	Country affiliation: Brazil Author Affiliation: da Silva IS ( Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brazil.)
Abstract	The association of trimethoprim and sulfamethoxazole is a very effective with antibiotic properties, and commonly used in the treatment of a variety of infections. Due to the importance in diseases treatment of humans and also of animals, the development of methods for their quantification in commercial formulations is highly desirable. In the present study, a rapid method for simultaneous determination of these compounds using CE with capacitively coupled contactless conductivity detection was developed. A favorable working region for both analytes was from 12.5 to 200 µmol/L (linear responses with R > 0.999 for N = 5). Other parameters calculated were sensitivity (1.28 ± 0.10/1.45 ± 0.11) min/(µmol L), RSD (4.5%/2.0%), and LOD (1.1/3.3) µmol/L for trimethoprim and sulfamethoxazole, respectively. Under this condition, the total run time was only 2.6 min. The proposed method was applied to the determination of trimethoprim and sulfamethoxazole in commercial samples and the results were compared to those obtained by using a HPLC pharmacopoeia method. This new method is advantageous for quality-control analyses of trimethoprim and sulfamethoxazole in pharmaceuticals samples, because it is rapid and precise. Moreover, it is less laborious and demands minimum amounts of reagents in comparison to the recommended method.
File Format	HTM / HTML
ISSN	16159306
Issue Number	8
Volume Number	36
e-ISSN	16159314
Journal	Journal of Separation Science
Language	English
Publisher	Wiley-VCH
Publisher Date	2013-04-01
Publisher Place	Germany
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Analytical Discipline Chemistry Electrophoresis, Capillary Methods Sulfamethoxazole Analysis Trimethoprim Chromatography, High Pressure Liquid Limit Of Detection Reproducibility Of Results Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Filtration and Separation

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