Determination of cadmium in tobacco by solid surface fluorescence using nylon membranes coated with carbon nanotubes

Autores
Talio, María Carolina; Alesso, Magdalena; Acosta, Mariano; Olsina, Roberto Antonio; Fernandez, Liliana Patricia
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A new methodology based on fluorescent signal enhancement of o-cresolphthalein (o-CPT) for traces of cadmium determination is proposed. The dye was retained on membrane filters in the presence of a micellar surfactant solution of carbon nanotubes (CNTs). All the experimental variables that influence both the preconcentration procedure and the fluorimetric sensitivity were carefully optimized. The calibration graph using zeroth order regression was linear from 6.5 ng L-1 to 5.65×105 ng L -1, with a correlation coefficient higher than 0.999. Under optimal conditions, the limits of detection and quantification were of 2 ng L -1 and 6.5 ng L-1. respectively. The proposed method showed good sensitivity and selectivity, with good tolerance to foreign ions, and it was applied to the determination of trace amounts of cadmium in leachate from cigarettes' tobacco samples with satisfactory results. The trueness of the recommended procedure was assessed through parallel analysis of the samples with electrothermal atomization atomic absorption spectrometry. This methodology represents an innovative and attractive application of membrane filters that enables metal traces determination by solid surface fluorescence.
Fil: Talio, María Carolina. 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: Alesso, Magdalena. 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: Acosta, Mariano. 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: Olsina, Roberto Antonio. 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: Fernandez, Liliana Patricia. 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
CADMIUM TRACES
CARBON NANOTUBES
CIGARETTES TOBACCO LEACHATE
O-CRESOLPHTHALEIN
SOLID SURFACE FLUORESCENCE
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:11336/92841
Acceder
id CONICETDig_3f731f0ac9259b10de8ef1589d0474ba
oai_identifier_str oai:ri.conicet.gov.ar:11336/92841
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Determination of cadmium in tobacco by solid surface fluorescence using nylon membranes coated with carbon nanotubesTalio, María CarolinaAlesso, MagdalenaAcosta, MarianoOlsina, Roberto AntonioFernandez, Liliana PatriciaCADMIUM TRACESCARBON NANOTUBESCIGARETTES TOBACCO LEACHATEO-CRESOLPHTHALEINSOLID SURFACE FLUORESCENCEhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1A new methodology based on fluorescent signal enhancement of o-cresolphthalein (o-CPT) for traces of cadmium determination is proposed. The dye was retained on membrane filters in the presence of a micellar surfactant solution of carbon nanotubes (CNTs). All the experimental variables that influence both the preconcentration procedure and the fluorimetric sensitivity were carefully optimized. The calibration graph using zeroth order regression was linear from 6.5 ng L-1 to 5.65×105 ng L -1, with a correlation coefficient higher than 0.999. Under optimal conditions, the limits of detection and quantification were of 2 ng L -1 and 6.5 ng L-1. respectively. The proposed method showed good sensitivity and selectivity, with good tolerance to foreign ions, and it was applied to the determination of trace amounts of cadmium in leachate from cigarettes' tobacco samples with satisfactory results. The trueness of the recommended procedure was assessed through parallel analysis of the samples with electrothermal atomization atomic absorption spectrometry. This methodology represents an innovative and attractive application of membrane filters that enables metal traces determination by solid surface fluorescence.Fil: Talio, María Carolina. 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: Alesso, Magdalena. 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: Acosta, Mariano. 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: Olsina, Roberto Antonio. 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: Fernandez, Liliana Patricia. 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 Science2013-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/92841Talio, María Carolina; Alesso, Magdalena; Acosta, Mariano; Olsina, Roberto Antonio; Fernandez, Liliana Patricia; Determination of cadmium in tobacco by solid surface fluorescence using nylon membranes coated with carbon nanotubes; Elsevier Science; Talanta; 107; 5-2013; 61-660039-9140CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S003991401201082Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.talanta.2012.12.048info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:09:58Zoai:ri.conicet.gov.ar:11336/92841instacron: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 10:09:58.974CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Determination of cadmium in tobacco by solid surface fluorescence using nylon membranes coated with carbon nanotubes
title Determination of cadmium in tobacco by solid surface fluorescence using nylon membranes coated with carbon nanotubes
spellingShingle Determination of cadmium in tobacco by solid surface fluorescence using nylon membranes coated with carbon nanotubes
Talio, María Carolina
CADMIUM TRACES
CARBON NANOTUBES
CIGARETTES TOBACCO LEACHATE
O-CRESOLPHTHALEIN
SOLID SURFACE FLUORESCENCE
title_short Determination of cadmium in tobacco by solid surface fluorescence using nylon membranes coated with carbon nanotubes
title_full Determination of cadmium in tobacco by solid surface fluorescence using nylon membranes coated with carbon nanotubes
title_fullStr Determination of cadmium in tobacco by solid surface fluorescence using nylon membranes coated with carbon nanotubes
title_full_unstemmed Determination of cadmium in tobacco by solid surface fluorescence using nylon membranes coated with carbon nanotubes
title_sort Determination of cadmium in tobacco by solid surface fluorescence using nylon membranes coated with carbon nanotubes
dc.creator.none.fl_str_mv Talio, María Carolina
Alesso, Magdalena
Acosta, Mariano
Olsina, Roberto Antonio
Fernandez, Liliana Patricia
author Talio, María Carolina
author_facet Talio, María Carolina
Alesso, Magdalena
Acosta, Mariano
Olsina, Roberto Antonio
Fernandez, Liliana Patricia
author_role author
author2 Alesso, Magdalena
Acosta, Mariano
Olsina, Roberto Antonio
Fernandez, Liliana Patricia
author2_role author
author
author
author
dc.subject.none.fl_str_mv CADMIUM TRACES
CARBON NANOTUBES
CIGARETTES TOBACCO LEACHATE
O-CRESOLPHTHALEIN
SOLID SURFACE FLUORESCENCE
topic CADMIUM TRACES
CARBON NANOTUBES
CIGARETTES TOBACCO LEACHATE
O-CRESOLPHTHALEIN
SOLID SURFACE FLUORESCENCE
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 methodology based on fluorescent signal enhancement of o-cresolphthalein (o-CPT) for traces of cadmium determination is proposed. The dye was retained on membrane filters in the presence of a micellar surfactant solution of carbon nanotubes (CNTs). All the experimental variables that influence both the preconcentration procedure and the fluorimetric sensitivity were carefully optimized. The calibration graph using zeroth order regression was linear from 6.5 ng L-1 to 5.65×105 ng L -1, with a correlation coefficient higher than 0.999. Under optimal conditions, the limits of detection and quantification were of 2 ng L -1 and 6.5 ng L-1. respectively. The proposed method showed good sensitivity and selectivity, with good tolerance to foreign ions, and it was applied to the determination of trace amounts of cadmium in leachate from cigarettes' tobacco samples with satisfactory results. The trueness of the recommended procedure was assessed through parallel analysis of the samples with electrothermal atomization atomic absorption spectrometry. This methodology represents an innovative and attractive application of membrane filters that enables metal traces determination by solid surface fluorescence.
Fil: Talio, María Carolina. 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: Alesso, Magdalena. 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: Acosta, Mariano. 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: Olsina, Roberto Antonio. 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: Fernandez, Liliana Patricia. 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 methodology based on fluorescent signal enhancement of o-cresolphthalein (o-CPT) for traces of cadmium determination is proposed. The dye was retained on membrane filters in the presence of a micellar surfactant solution of carbon nanotubes (CNTs). All the experimental variables that influence both the preconcentration procedure and the fluorimetric sensitivity were carefully optimized. The calibration graph using zeroth order regression was linear from 6.5 ng L-1 to 5.65×105 ng L -1, with a correlation coefficient higher than 0.999. Under optimal conditions, the limits of detection and quantification were of 2 ng L -1 and 6.5 ng L-1. respectively. The proposed method showed good sensitivity and selectivity, with good tolerance to foreign ions, and it was applied to the determination of trace amounts of cadmium in leachate from cigarettes' tobacco samples with satisfactory results. The trueness of the recommended procedure was assessed through parallel analysis of the samples with electrothermal atomization atomic absorption spectrometry. This methodology represents an innovative and attractive application of membrane filters that enables metal traces determination by solid surface fluorescence.
publishDate 2013
dc.date.none.fl_str_mv 2013-05
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/11336/92841
Talio, María Carolina; Alesso, Magdalena; Acosta, Mariano; Olsina, Roberto Antonio; Fernandez, Liliana Patricia; Determination of cadmium in tobacco by solid surface fluorescence using nylon membranes coated with carbon nanotubes; Elsevier Science; Talanta; 107; 5-2013; 61-66
0039-9140
CONICET Digital
CONICET
url http://hdl.handle.net/11336/92841
identifier_str_mv Talio, María Carolina; Alesso, Magdalena; Acosta, Mariano; Olsina, Roberto Antonio; Fernandez, Liliana Patricia; Determination of cadmium in tobacco by solid surface fluorescence using nylon membranes coated with carbon nanotubes; Elsevier Science; Talanta; 107; 5-2013; 61-66
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/url/https://www.sciencedirect.com/science/article/pii/S003991401201082X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.talanta.2012.12.048
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
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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score 13.13397

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