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Adsorptive stripping voltammetric behaviour of sulphaquinoxaline using differential-pulse and square-wave techniques

✍ Scribed by J.J. Berzas; J. Rodríguez; J.M. Lemus; G. Castañeda

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
582 KB
Volume
273
Category
Article
ISSN
0003-2670

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✦ Synopsis

The adsorptive stnppmg voltammetlrc behavlour of sulphaqumoxalme (SQX) was studied by both square-wave and dlfferentlal-pulse techniques, leading to two methods for Its detemunatlon m aqueous samples and pharmaceutlcal fonnulatlons The application of the square-wave mode for the stnppmg of adsorbed SQX proved to be more sensltlve, yleldmg signals fifteen times larger than those obtained by applymg a d&ferential-pulse scan The relatwe standard devlatlons obtained for concentration levels of SQX as low as 15 x 10v6 M mth square-wave and dtierentlal-pulse methods were 2 47% and 2 21% (n = 81, respectrvely

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