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...
| Autores: | , , |
|---|---|
| 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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oai:upcommons.upc.edu:2117/24448 |
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España |
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A critical comparison of methods for the analysis of indigo in dyeing liquors and effluents Buscio Olivera, Valentina|||0000-0002-0313-5299 Crespi Rosell, Martin|||0000-0002-7445-9282 Gutiérrez Bouzán, María Carmen|||0000-0001-9498-8299 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 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 https://hdl.handle.net/2117/24448 https://dx.doi.org/10.3390/ma7096184 28788185 |
| 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 |
| 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 |
| 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 |
| topic_facet |
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 |
| format |
article |
| url |
https://hdl.handle.net/2117/24448 https://dx.doi.org/10.3390/ma7096184 |
| identifier_str_mv |
28788185 |
| language |
eng |
| eu_rights_str_mv |
openAccess |
| institution |
Universitat Politècnica de Catalunya (UPC) |
| collection |
UPCommons. Portal del coneixement obert de la UPC |
| reponame_str |
UPCommons. Portal del coneixement obert de la UPC |
| instname_str |
Universitat Politècnica de Catalunya (UPC) |
| _version_ |
1878738620905422848 |
| publishDateSort |
2014 |
| author_browse |
Buscio Olivera, Valentina|||0000-0002-0313-5299 Crespi Rosell, Martin|||0000-0002-7445-9282 Gutiérrez Bouzán, María Carmen|||0000-0001-9498-8299 |
| score |
6,8972664 |