Voltammetric behavior of zaleplon and its differential pulse polarographic determination in capsules
Author | dc.contributor.author | Larenas Gutiérrez, Gipsy | |
Author | dc.contributor.author | Bollo Dragnic, Soledad | es_CL |
Author | dc.contributor.author | Rodríguez, M. | es_CL |
Author | dc.contributor.author | Lemus Gutiérrez, Igor | es_CL |
Author | dc.contributor.author | Núñez Vergara, Luis | es_CL |
Author | dc.contributor.author | Squella Serrano, Juan | es_CL |
Author | dc.contributor.author | Álvarez Lueje, Alejandro | es_CL |
Admission date | dc.date.accessioned | 2008-09-02T16:34:20Z | |
Available date | dc.date.available | 2008-09-02T16:34:20Z | |
Publication date | dc.date.issued | 2005-07 | |
Cita de ítem | dc.identifier.citation | JOURNAL OF AOAC INTERNATIONAL 88(4):1135-1141 | en |
Identifier | dc.identifier.issn | 1060-3271 | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/120500 | |
Abstract | dc.description.abstract | In this work both the electrochemical behavior and the analysis of the hypnotic pyrazolopyrimidine derivative zaleplon were studied. Zaleplon in ethanol-0.1 M Britton Robinson buffer solution (30-70) showed 2 irreversible, well-defined cathodic responses in the pH range of 2-12 using differential pulse polarography (DPP), tast polarography, and cyclic voltammetry. From chronocoulometric studies, it was possible to conclude that one electron was transferred in each reduction peak or wave. For analytical purposes, the DPP technique working at pH 4.5 for peak I was selected, which exhibited adequate repeatability, reproducibility, and selectivity. The recovery was 99.97 +/- 1.52%, and the detection and quantitation limits were 5.13 x 10(-7) M and 1.11 X 10(-6)M, respectively. The DPP method was applied successfully to the individual assay of capsules in order to verify the content uniformity of zaleplon. Treatment of the sample is not required because the excipients do not interfere, the method is not time consuming, and it is less expensive than column liquid chromatography. | en |
Lenguage | dc.language.iso | en | en |
Publisher | dc.publisher | AOAC INTERNATIONAL | en |
Keywords | dc.subject | Voltametría | en |
Título | dc.title | Voltammetric behavior of zaleplon and its differential pulse polarographic determination in capsules | en |
Document type | dc.type | Artículo de revista |
Files in this item
This item appears in the following Collection(s)
-
Artículos de revistas
Artículos de revistas