Analytical and bioanalytical chemistry · 2002
Square-wave voltammetric techniques for determination of psychoactive 1,4-benzodiazepine drugs.
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Dos Santos M M Correia, Famila Vila, Gonçalves M L Simões
Аннотация
Direct square-wave voltammetry (SWV) and square-wave cathodic stripping voltammetry (SWCSV) at hanging mercury drop electrodes have been developed for determination of the psychoactive 1,4-benzodiazepine compounds clonazepam, bromazepam, midazolam, diazepam, medazepam, and flurazepam over a wide range of concentrations. Analysis was performed with better precision, lower detection limits, and much more rapidly than by previously reported voltammetric techniques. The applicability of both procedures is discussed. The methods were applied to the analysis of commercially available tablets with minimum sample manipulation. The accuracy of the results was accessed by comparison with those obtained by use of the methods described in official pharmacopoeias. A critical comparison with those procedures is also presented.