A critical comparison of methods for the analysis of indigo in dyeing liquors and effluents

Indigo is one of the most important dyes in the textile industry. The control of the indigo concentration in dyeing liquors and effluents is an important tool to ensure the reproducibility of the dyed fabrics and also to establish the efficiency of the wastewater treatment. In this work, three analy...

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Autores: Buscio Olivera, Valentina|||0000-0002-0313-5299, Crespi Rosell, Martin|||0000-0002-7445-9282, Gutiérrez Bouzán, María Carmen|||0000-0001-9498-8299
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/24448
Acceso en línea:https://hdl.handle.net/2117/24448
https://dx.doi.org/10.3390/ma7096184
Access Level:acceso abierto
Palabra clave:Dyes and dyeing
Indigo
Spectrophotometry
Sewage
indigo dye
method validation
hexacyanoferrate titration
spectrophotometric
dye baths
effluent
Tints i tenyit -- Fibres tèxtils
Aigües residuals -- Indústries
Espectrofotometria
Àrees temàtiques de la UPC::Enginyeria tèxtil ::Fabricació tèxtil::Tintura
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spelling A critical comparison of methods for the analysis of indigo in dyeing liquors and effluentsBuscio Olivera, Valentina|||0000-0002-0313-5299Crespi Rosell, Martin|||0000-0002-7445-9282Gutiérrez Bouzán, María Carmen|||0000-0001-9498-8299Dyes and dyeingIndigoSpectrophotometrySewageindigo dyemethod validationhexacyanoferrate titrationspectrophotometricdye bathseffluentTints i tenyit -- Fibres tèxtilsAigües residuals -- IndústriesEspectrofotometriaÀrees temàtiques de la UPC::Enginyeria tèxtil ::Fabricació tèxtil::TinturaIndigo is one of the most important dyes in the textile industry. The control of the indigo concentration in dyeing liquors and effluents is an important tool to ensure the reproducibility of the dyed fabrics and also to establish the efficiency of the wastewater treatment. In this work, three analytical methods were studied and validated with the aim to select a reliable, fast and automated method for the indigo dye determination. The first method is based on the extraction of the dye, with chloroform, in its oxidized form. The organic solution is measured by Ultraviolet (UV)-visible spectrophotometry at 604 nm. The second method determines the concentration of indigo in its leuco form in aqueous medium by UV-visible spectrophotometry at 407 nm. Finally, in the last method, the concentration of indigo is determined by redox titration with potassium hexacyanoferrate (K3(Fe(CN)6)). The results indicated that the three methods that we studied met the established acceptance criteria regarding accuracy and precision. However, the third method was considered the most adequate for application on an industrial scale due to its wider work range, which provides a significant advantage over the others20142014-08-2920142014-10-22journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/24448https://dx.doi.org/10.3390/ma709618428788185reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 3.0 Spainhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/244482026-05-27T15:37:01Z
dc.title.none.fl_str_mv A critical comparison of methods for the analysis of indigo in dyeing liquors and effluents
title A critical comparison of methods for the analysis of indigo in dyeing liquors and effluents
spellingShingle A critical comparison of methods for the analysis of indigo in dyeing liquors and effluents
Buscio Olivera, Valentina|||0000-0002-0313-5299
Dyes and dyeing
Indigo
Spectrophotometry
Sewage
indigo dye
method validation
hexacyanoferrate titration
spectrophotometric
dye baths
effluent
Tints i tenyit -- Fibres tèxtils
Aigües residuals -- Indústries
Espectrofotometria
Àrees temàtiques de la UPC::Enginyeria tèxtil ::Fabricació tèxtil::Tintura
title_short A critical comparison of methods for the analysis of indigo in dyeing liquors and effluents
title_full A critical comparison of methods for the analysis of indigo in dyeing liquors and effluents
title_fullStr A critical comparison of methods for the analysis of indigo in dyeing liquors and effluents
title_full_unstemmed A critical comparison of methods for the analysis of indigo in dyeing liquors and effluents
title_sort A critical comparison of methods for the analysis of indigo in dyeing liquors and effluents
dc.creator.none.fl_str_mv Buscio Olivera, Valentina|||0000-0002-0313-5299
Crespi Rosell, Martin|||0000-0002-7445-9282
Gutiérrez Bouzán, María Carmen|||0000-0001-9498-8299
author Buscio Olivera, Valentina|||0000-0002-0313-5299
author_facet Buscio Olivera, Valentina|||0000-0002-0313-5299
Crespi Rosell, Martin|||0000-0002-7445-9282
Gutiérrez Bouzán, María Carmen|||0000-0001-9498-8299
author_role author
author2 Crespi Rosell, Martin|||0000-0002-7445-9282
Gutiérrez Bouzán, María Carmen|||0000-0001-9498-8299
author2_role author
author
dc.subject.none.fl_str_mv Dyes and dyeing
Indigo
Spectrophotometry
Sewage
indigo dye
method validation
hexacyanoferrate titration
spectrophotometric
dye baths
effluent
Tints i tenyit -- Fibres tèxtils
Aigües residuals -- Indústries
Espectrofotometria
Àrees temàtiques de la UPC::Enginyeria tèxtil ::Fabricació tèxtil::Tintura
topic Dyes and dyeing
Indigo
Spectrophotometry
Sewage
indigo dye
method validation
hexacyanoferrate titration
spectrophotometric
dye baths
effluent
Tints i tenyit -- Fibres tèxtils
Aigües residuals -- Indústries
Espectrofotometria
Àrees temàtiques de la UPC::Enginyeria tèxtil ::Fabricació tèxtil::Tintura
description Indigo is one of the most important dyes in the textile industry. The control of the indigo concentration in dyeing liquors and effluents is an important tool to ensure the reproducibility of the dyed fabrics and also to establish the efficiency of the wastewater treatment. In this work, three analytical methods were studied and validated with the aim to select a reliable, fast and automated method for the indigo dye determination. The first method is based on the extraction of the dye, with chloroform, in its oxidized form. The organic solution is measured by Ultraviolet (UV)-visible spectrophotometry at 604 nm. The second method determines the concentration of indigo in its leuco form in aqueous medium by UV-visible spectrophotometry at 407 nm. Finally, in the last method, the concentration of indigo is determined by redox titration with potassium hexacyanoferrate (K3(Fe(CN)6)). The results indicated that the three methods that we studied met the established acceptance criteria regarding accuracy and precision. However, the third method was considered the most adequate for application on an industrial scale due to its wider work range, which provides a significant advantage over the others
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-08-29
2014
2014-10-22
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/24448
https://dx.doi.org/10.3390/ma7096184
28788185
url https://hdl.handle.net/2117/24448
https://dx.doi.org/10.3390/ma7096184
identifier_str_mv 28788185
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 3.0 Spain
http://creativecommons.org/licenses/by/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 3.0 Spain
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300724

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