Determination of terazosin by cloud point extraction-fluorimetric combined methodology

Autores
Wang, Chien Chun; Luconi, Marta Olga; Masi, Adriana Noemi; Fernández, Liliana
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A new sensitive and selective preconcentration-fluorimetric method for determination of terazosin based on its native fluorescence was developed. The analyte, initially present in aqueous matrix, was treated with an extractive non-ionic surfactant solution and separated by the clouding phenomenon. The optimum analytical conditions for terazosin assay were established. Under these conditions, linear calibration curves were obtained over the range of 1 × 10-5 to 7.0 μg mL-1 with detection and quantification limits of 1.11 × 10-5 and 3.7 × 10-5 μg mL-1, respectively. Additionally, the binding constant (KB) for the terazosin-PONPE 7.5 system was determined given a value of 1028 L mol-1. The developed coupled methodology, which thoroughly satisfies the typical requirements for pharmaceutical control processes, was proved to be appropriate for monitoring terazosin in actual pharmaceutical formulations and biological fluid sample. The results were validated by recovery test and by comparison with other reported methods, being highly satisfactory.
Fil: Wang, Chien Chun. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
Fil: Luconi, Marta Olga. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Química. Área de Química Analítica; Argentina
Fil: Masi, Adriana Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
Fil: Fernández, Liliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
Materia
CLOUD POINT EXTRACTION
FLUORESCENCE
PHARMACEUTICALS
TERAZOSIN
URINE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/92861

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network_name_str CONICET Digital (CONICET)
spelling Determination of terazosin by cloud point extraction-fluorimetric combined methodologyWang, Chien ChunLuconi, Marta OlgaMasi, Adriana NoemiFernández, LilianaCLOUD POINT EXTRACTIONFLUORESCENCEPHARMACEUTICALSTERAZOSINURINEhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1A new sensitive and selective preconcentration-fluorimetric method for determination of terazosin based on its native fluorescence was developed. The analyte, initially present in aqueous matrix, was treated with an extractive non-ionic surfactant solution and separated by the clouding phenomenon. The optimum analytical conditions for terazosin assay were established. Under these conditions, linear calibration curves were obtained over the range of 1 × 10-5 to 7.0 μg mL-1 with detection and quantification limits of 1.11 × 10-5 and 3.7 × 10-5 μg mL-1, respectively. Additionally, the binding constant (KB) for the terazosin-PONPE 7.5 system was determined given a value of 1028 L mol-1. The developed coupled methodology, which thoroughly satisfies the typical requirements for pharmaceutical control processes, was proved to be appropriate for monitoring terazosin in actual pharmaceutical formulations and biological fluid sample. The results were validated by recovery test and by comparison with other reported methods, being highly satisfactory.Fil: Wang, Chien Chun. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; ArgentinaFil: Luconi, Marta Olga. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Química. Área de Química Analítica; ArgentinaFil: Masi, Adriana Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; ArgentinaFil: Fernández, Liliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; ArgentinaElsevier Science2007-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/92861Wang, Chien Chun; Luconi, Marta Olga; Masi, Adriana Noemi; Fernández, Liliana; Determination of terazosin by cloud point extraction-fluorimetric combined methodology; Elsevier Science; Talanta; 72; 5; 7-2007; 1779-17850039-9140CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.talanta.2007.02.010info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0039914007001373info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:59:20Zoai:ri.conicet.gov.ar:11336/92861instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:59:20.304CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Determination of terazosin by cloud point extraction-fluorimetric combined methodology
title Determination of terazosin by cloud point extraction-fluorimetric combined methodology
spellingShingle Determination of terazosin by cloud point extraction-fluorimetric combined methodology
Wang, Chien Chun
CLOUD POINT EXTRACTION
FLUORESCENCE
PHARMACEUTICALS
TERAZOSIN
URINE
title_short Determination of terazosin by cloud point extraction-fluorimetric combined methodology
title_full Determination of terazosin by cloud point extraction-fluorimetric combined methodology
title_fullStr Determination of terazosin by cloud point extraction-fluorimetric combined methodology
title_full_unstemmed Determination of terazosin by cloud point extraction-fluorimetric combined methodology
title_sort Determination of terazosin by cloud point extraction-fluorimetric combined methodology
dc.creator.none.fl_str_mv Wang, Chien Chun
Luconi, Marta Olga
Masi, Adriana Noemi
Fernández, Liliana
author Wang, Chien Chun
author_facet Wang, Chien Chun
Luconi, Marta Olga
Masi, Adriana Noemi
Fernández, Liliana
author_role author
author2 Luconi, Marta Olga
Masi, Adriana Noemi
Fernández, Liliana
author2_role author
author
author
dc.subject.none.fl_str_mv CLOUD POINT EXTRACTION
FLUORESCENCE
PHARMACEUTICALS
TERAZOSIN
URINE
topic CLOUD POINT EXTRACTION
FLUORESCENCE
PHARMACEUTICALS
TERAZOSIN
URINE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A new sensitive and selective preconcentration-fluorimetric method for determination of terazosin based on its native fluorescence was developed. The analyte, initially present in aqueous matrix, was treated with an extractive non-ionic surfactant solution and separated by the clouding phenomenon. The optimum analytical conditions for terazosin assay were established. Under these conditions, linear calibration curves were obtained over the range of 1 × 10-5 to 7.0 μg mL-1 with detection and quantification limits of 1.11 × 10-5 and 3.7 × 10-5 μg mL-1, respectively. Additionally, the binding constant (KB) for the terazosin-PONPE 7.5 system was determined given a value of 1028 L mol-1. The developed coupled methodology, which thoroughly satisfies the typical requirements for pharmaceutical control processes, was proved to be appropriate for monitoring terazosin in actual pharmaceutical formulations and biological fluid sample. The results were validated by recovery test and by comparison with other reported methods, being highly satisfactory.
Fil: Wang, Chien Chun. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
Fil: Luconi, Marta Olga. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Química. Área de Química Analítica; Argentina
Fil: Masi, Adriana Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
Fil: Fernández, Liliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
description A new sensitive and selective preconcentration-fluorimetric method for determination of terazosin based on its native fluorescence was developed. The analyte, initially present in aqueous matrix, was treated with an extractive non-ionic surfactant solution and separated by the clouding phenomenon. The optimum analytical conditions for terazosin assay were established. Under these conditions, linear calibration curves were obtained over the range of 1 × 10-5 to 7.0 μg mL-1 with detection and quantification limits of 1.11 × 10-5 and 3.7 × 10-5 μg mL-1, respectively. Additionally, the binding constant (KB) for the terazosin-PONPE 7.5 system was determined given a value of 1028 L mol-1. The developed coupled methodology, which thoroughly satisfies the typical requirements for pharmaceutical control processes, was proved to be appropriate for monitoring terazosin in actual pharmaceutical formulations and biological fluid sample. The results were validated by recovery test and by comparison with other reported methods, being highly satisfactory.
publishDate 2007
dc.date.none.fl_str_mv 2007-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/92861
Wang, Chien Chun; Luconi, Marta Olga; Masi, Adriana Noemi; Fernández, Liliana; Determination of terazosin by cloud point extraction-fluorimetric combined methodology; Elsevier Science; Talanta; 72; 5; 7-2007; 1779-1785
0039-9140
CONICET Digital
CONICET
url http://hdl.handle.net/11336/92861
identifier_str_mv Wang, Chien Chun; Luconi, Marta Olga; Masi, Adriana Noemi; Fernández, Liliana; Determination of terazosin by cloud point extraction-fluorimetric combined methodology; Elsevier Science; Talanta; 72; 5; 7-2007; 1779-1785
0039-9140
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.talanta.2007.02.010
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0039914007001373
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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