Application of redox reactions for the determination of valganciclovir hydrochloride in pharmaceuticals
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Pharmaceutical Sciences |
Texto Completo: | https://www.revistas.usp.br/bjps/article/view/181408 |
Resumo: | Two simple, selective and sensitive spectrophotometric methods were developed and validated for the determination of valganciclovir hydrochloride (VLGH) in pure drug and tablets. The first method was based on the reduction of iron(III) to iron(II) by VLGH and subsequent formation of iron(III)-ferricyanide complex (Prussian blue) in acid medium which was measured at 730 nm (method A). In the second method (method B), permanganate was reduced by VLGH to bluish green manganate in alkaline medium and the absorbance was measured at 610 nm. The absorbance measured in each case was related to VLGH concentration. The experimental conditions were carefully studied and optimized. Beer’s law was obeyed over the concentration ranges of 2.5-20.0 and 2.0-40.0 µg mL-1 for method A and method B, respectively, with corresponding molar absorptivity values of 1.28×104 and 6.88×103 L mol-1 cm-1. The limits of detection (LOD) and quantification (LOQ) were 0.11 and 0.33 µg mL-1 (method A) and 0.21 and 0.64 µg mL-1 (method B). Within-day and between-day relative standard deviations (%RSD) at three different concentrations levels were < 2.4%, and the respective relative errors (%RE) were ≤ 3%. The proposed methods were successfully applied to the determination of VLGH in tablets, and the results confirmed that the proposed methods were equally precise and accurate as the official method. |
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Brazilian Journal of Pharmaceutical Sciences |
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Application of redox reactions for the determination of valganciclovir hydrochloride in pharmaceuticalsValganciclovir hydrochloride/determinationSpectrophotometry/method validationPharmaceutical formulationsTwo simple, selective and sensitive spectrophotometric methods were developed and validated for the determination of valganciclovir hydrochloride (VLGH) in pure drug and tablets. The first method was based on the reduction of iron(III) to iron(II) by VLGH and subsequent formation of iron(III)-ferricyanide complex (Prussian blue) in acid medium which was measured at 730 nm (method A). In the second method (method B), permanganate was reduced by VLGH to bluish green manganate in alkaline medium and the absorbance was measured at 610 nm. The absorbance measured in each case was related to VLGH concentration. The experimental conditions were carefully studied and optimized. Beer’s law was obeyed over the concentration ranges of 2.5-20.0 and 2.0-40.0 µg mL-1 for method A and method B, respectively, with corresponding molar absorptivity values of 1.28×104 and 6.88×103 L mol-1 cm-1. The limits of detection (LOD) and quantification (LOQ) were 0.11 and 0.33 µg mL-1 (method A) and 0.21 and 0.64 µg mL-1 (method B). Within-day and between-day relative standard deviations (%RSD) at three different concentrations levels were < 2.4%, and the respective relative errors (%RE) were ≤ 3%. The proposed methods were successfully applied to the determination of VLGH in tablets, and the results confirmed that the proposed methods were equally precise and accurate as the official method.Universidade de São Paulo. Faculdade de Ciências Farmacêuticas2020-12-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/bjps/article/view/18140810.1590/s2175-97902019000317784Brazilian Journal of Pharmaceutical Sciences; Vol. 56 (2020); e17784Brazilian Journal of Pharmaceutical Sciences; v. 56 (2020); e17784Brazilian Journal of Pharmaceutical Sciences; Vol. 56 (2020); e177842175-97901984-8250reponame:Brazilian Journal of Pharmaceutical Sciencesinstname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/bjps/article/view/181408/168342Copyright (c) 2020 Brazilian Journal of Pharmaceutical Scienceshttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessQarah, Nagib Abdullah Salem Basavaiah, Kanakapura Abdulrahman, Sameer Abdulaziz Mohammed 2021-06-12T19:46:54Zoai:revistas.usp.br:article/181408Revistahttps://www.revistas.usp.br/bjps/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpbjps@usp.br||elizabeth.igne@gmail.com2175-97901984-8250opendoar:2021-06-12T19:46:54Brazilian Journal of Pharmaceutical Sciences - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Application of redox reactions for the determination of valganciclovir hydrochloride in pharmaceuticals |
title |
Application of redox reactions for the determination of valganciclovir hydrochloride in pharmaceuticals |
spellingShingle |
Application of redox reactions for the determination of valganciclovir hydrochloride in pharmaceuticals Qarah, Nagib Abdullah Salem Valganciclovir hydrochloride/determination Spectrophotometry/method validation Pharmaceutical formulations |
title_short |
Application of redox reactions for the determination of valganciclovir hydrochloride in pharmaceuticals |
title_full |
Application of redox reactions for the determination of valganciclovir hydrochloride in pharmaceuticals |
title_fullStr |
Application of redox reactions for the determination of valganciclovir hydrochloride in pharmaceuticals |
title_full_unstemmed |
Application of redox reactions for the determination of valganciclovir hydrochloride in pharmaceuticals |
title_sort |
Application of redox reactions for the determination of valganciclovir hydrochloride in pharmaceuticals |
author |
Qarah, Nagib Abdullah Salem |
author_facet |
Qarah, Nagib Abdullah Salem Basavaiah, Kanakapura Abdulrahman, Sameer Abdulaziz Mohammed |
author_role |
author |
author2 |
Basavaiah, Kanakapura Abdulrahman, Sameer Abdulaziz Mohammed |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Qarah, Nagib Abdullah Salem Basavaiah, Kanakapura Abdulrahman, Sameer Abdulaziz Mohammed |
dc.subject.por.fl_str_mv |
Valganciclovir hydrochloride/determination Spectrophotometry/method validation Pharmaceutical formulations |
topic |
Valganciclovir hydrochloride/determination Spectrophotometry/method validation Pharmaceutical formulations |
description |
Two simple, selective and sensitive spectrophotometric methods were developed and validated for the determination of valganciclovir hydrochloride (VLGH) in pure drug and tablets. The first method was based on the reduction of iron(III) to iron(II) by VLGH and subsequent formation of iron(III)-ferricyanide complex (Prussian blue) in acid medium which was measured at 730 nm (method A). In the second method (method B), permanganate was reduced by VLGH to bluish green manganate in alkaline medium and the absorbance was measured at 610 nm. The absorbance measured in each case was related to VLGH concentration. The experimental conditions were carefully studied and optimized. Beer’s law was obeyed over the concentration ranges of 2.5-20.0 and 2.0-40.0 µg mL-1 for method A and method B, respectively, with corresponding molar absorptivity values of 1.28×104 and 6.88×103 L mol-1 cm-1. The limits of detection (LOD) and quantification (LOQ) were 0.11 and 0.33 µg mL-1 (method A) and 0.21 and 0.64 µg mL-1 (method B). Within-day and between-day relative standard deviations (%RSD) at three different concentrations levels were < 2.4%, and the respective relative errors (%RE) were ≤ 3%. The proposed methods were successfully applied to the determination of VLGH in tablets, and the results confirmed that the proposed methods were equally precise and accurate as the official method. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-09 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/bjps/article/view/181408 10.1590/s2175-97902019000317784 |
url |
https://www.revistas.usp.br/bjps/article/view/181408 |
identifier_str_mv |
10.1590/s2175-97902019000317784 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/bjps/article/view/181408/168342 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Brazilian Journal of Pharmaceutical Sciences http://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Brazilian Journal of Pharmaceutical Sciences http://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Ciências Farmacêuticas |
publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Ciências Farmacêuticas |
dc.source.none.fl_str_mv |
Brazilian Journal of Pharmaceutical Sciences; Vol. 56 (2020); e17784 Brazilian Journal of Pharmaceutical Sciences; v. 56 (2020); e17784 Brazilian Journal of Pharmaceutical Sciences; Vol. 56 (2020); e17784 2175-9790 1984-8250 reponame:Brazilian Journal of Pharmaceutical Sciences instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Brazilian Journal of Pharmaceutical Sciences |
collection |
Brazilian Journal of Pharmaceutical Sciences |
repository.name.fl_str_mv |
Brazilian Journal of Pharmaceutical Sciences - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
bjps@usp.br||elizabeth.igne@gmail.com |
_version_ |
1800222915056107520 |