Development and application of a portable instrument for drugs analysis in pharmaceutical preparations
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1984-82502015000300022 http://hdl.handle.net/11449/177622 |
Resumo: | This article describes the application and performance of an inexpensive, simple and portable device for colorimetric quantitative determination of drugs in pharmaceutical preparations. The sensor is a light detector resistor (LDR) incorporated into a black PTFE cell and coupled to a low-cost multimeter (Ohmmeter). Quantitative studies were performed with captopril/p-chloranil/H2O2 and methyldopa/ ammonium molybdate systems. Calibration curves were obtained by plotting the electrical resistance of the LDR against the concentration of the colored species in the ranges 1.84 x 10-4 to 1.29 x 10-3 mol L-1 and 5.04 x 10-4 to 2.52 x 10-3 mol L-1 for captopril/p-chloranil/H2O2 and methyldopa/ammonium molybdate systems, respectively, exhibiting good coefficients of determination. Statistical analysis of the results obtained showed no significant difference between the proposed methodologies and the official reported methods, as evidenced by the t-test and variance ratio at a 95% confidence level. The results of this study demonstrate the applicability of the instrument for simple, accurate, precise, fast, in situ and low-cost colorimetric analysis of drugs in pharmaceutical products. |
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Development and application of a portable instrument for drugs analysis in pharmaceutical preparationsDrugs/ quantitative analysisDrugs/dosageInstrumentation/drugs dosageOptical sensor/application/colorimetric analysisPharmaceutical formulations/quality controlThis article describes the application and performance of an inexpensive, simple and portable device for colorimetric quantitative determination of drugs in pharmaceutical preparations. The sensor is a light detector resistor (LDR) incorporated into a black PTFE cell and coupled to a low-cost multimeter (Ohmmeter). Quantitative studies were performed with captopril/p-chloranil/H2O2 and methyldopa/ ammonium molybdate systems. Calibration curves were obtained by plotting the electrical resistance of the LDR against the concentration of the colored species in the ranges 1.84 x 10-4 to 1.29 x 10-3 mol L-1 and 5.04 x 10-4 to 2.52 x 10-3 mol L-1 for captopril/p-chloranil/H2O2 and methyldopa/ammonium molybdate systems, respectively, exhibiting good coefficients of determination. Statistical analysis of the results obtained showed no significant difference between the proposed methodologies and the official reported methods, as evidenced by the t-test and variance ratio at a 95% confidence level. The results of this study demonstrate the applicability of the instrument for simple, accurate, precise, fast, in situ and low-cost colorimetric analysis of drugs in pharmaceutical products.Centre for Social Science Health and Technology Federal University of MaranhãoInstitute of Chemistry São Paulo State University UNESPDepartment of Analytical Chemistry Institute of Chemistry State University of Campinas UNICAMPInstitute of Chemistry São Paulo State University UNESPFederal University of MaranhãoUniversidade Estadual Paulista (Unesp)Universidade Estadual de Campinas (UNICAMP)Ribeiro, Paulo Roberto da SilvaPezza, Helena Redigolo [UNESP]Pezz, Leonardo [UNESP]Lima, Liliane Spazzapam [UNESP]Tubino, Matthieu2018-12-11T17:26:22Z2018-12-11T17:26:22Z2015-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article699-708application/pdfhttp://dx.doi.org/10.1590/S1984-82502015000300022Brazilian Journal of Pharmaceutical Sciences, v. 51, n. 3, p. 699-708, 2015.2175-97901984-8250http://hdl.handle.net/11449/17762210.1590/S1984-82502015000300022S1984-825020150003006992-s2.0-84948764121S1984-82502015000300699.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal of Pharmaceutical Sciences0,2140,214info:eu-repo/semantics/openAccess2024-01-01T06:18:19Zoai:repositorio.unesp.br:11449/177622Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:50:36.890117Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Development and application of a portable instrument for drugs analysis in pharmaceutical preparations |
title |
Development and application of a portable instrument for drugs analysis in pharmaceutical preparations |
spellingShingle |
Development and application of a portable instrument for drugs analysis in pharmaceutical preparations Ribeiro, Paulo Roberto da Silva Drugs/ quantitative analysis Drugs/dosage Instrumentation/drugs dosage Optical sensor/application/colorimetric analysis Pharmaceutical formulations/quality control |
title_short |
Development and application of a portable instrument for drugs analysis in pharmaceutical preparations |
title_full |
Development and application of a portable instrument for drugs analysis in pharmaceutical preparations |
title_fullStr |
Development and application of a portable instrument for drugs analysis in pharmaceutical preparations |
title_full_unstemmed |
Development and application of a portable instrument for drugs analysis in pharmaceutical preparations |
title_sort |
Development and application of a portable instrument for drugs analysis in pharmaceutical preparations |
author |
Ribeiro, Paulo Roberto da Silva |
author_facet |
Ribeiro, Paulo Roberto da Silva Pezza, Helena Redigolo [UNESP] Pezz, Leonardo [UNESP] Lima, Liliane Spazzapam [UNESP] Tubino, Matthieu |
author_role |
author |
author2 |
Pezza, Helena Redigolo [UNESP] Pezz, Leonardo [UNESP] Lima, Liliane Spazzapam [UNESP] Tubino, Matthieu |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Federal University of Maranhão Universidade Estadual Paulista (Unesp) Universidade Estadual de Campinas (UNICAMP) |
dc.contributor.author.fl_str_mv |
Ribeiro, Paulo Roberto da Silva Pezza, Helena Redigolo [UNESP] Pezz, Leonardo [UNESP] Lima, Liliane Spazzapam [UNESP] Tubino, Matthieu |
dc.subject.por.fl_str_mv |
Drugs/ quantitative analysis Drugs/dosage Instrumentation/drugs dosage Optical sensor/application/colorimetric analysis Pharmaceutical formulations/quality control |
topic |
Drugs/ quantitative analysis Drugs/dosage Instrumentation/drugs dosage Optical sensor/application/colorimetric analysis Pharmaceutical formulations/quality control |
description |
This article describes the application and performance of an inexpensive, simple and portable device for colorimetric quantitative determination of drugs in pharmaceutical preparations. The sensor is a light detector resistor (LDR) incorporated into a black PTFE cell and coupled to a low-cost multimeter (Ohmmeter). Quantitative studies were performed with captopril/p-chloranil/H2O2 and methyldopa/ ammonium molybdate systems. Calibration curves were obtained by plotting the electrical resistance of the LDR against the concentration of the colored species in the ranges 1.84 x 10-4 to 1.29 x 10-3 mol L-1 and 5.04 x 10-4 to 2.52 x 10-3 mol L-1 for captopril/p-chloranil/H2O2 and methyldopa/ammonium molybdate systems, respectively, exhibiting good coefficients of determination. Statistical analysis of the results obtained showed no significant difference between the proposed methodologies and the official reported methods, as evidenced by the t-test and variance ratio at a 95% confidence level. The results of this study demonstrate the applicability of the instrument for simple, accurate, precise, fast, in situ and low-cost colorimetric analysis of drugs in pharmaceutical products. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-07-01 2018-12-11T17:26:22Z 2018-12-11T17:26:22Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S1984-82502015000300022 Brazilian Journal of Pharmaceutical Sciences, v. 51, n. 3, p. 699-708, 2015. 2175-9790 1984-8250 http://hdl.handle.net/11449/177622 10.1590/S1984-82502015000300022 S1984-82502015000300699 2-s2.0-84948764121 S1984-82502015000300699.pdf |
url |
http://dx.doi.org/10.1590/S1984-82502015000300022 http://hdl.handle.net/11449/177622 |
identifier_str_mv |
Brazilian Journal of Pharmaceutical Sciences, v. 51, n. 3, p. 699-708, 2015. 2175-9790 1984-8250 10.1590/S1984-82502015000300022 S1984-82502015000300699 2-s2.0-84948764121 S1984-82502015000300699.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brazilian Journal of Pharmaceutical Sciences 0,214 0,214 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
699-708 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129365242806272 |