Analysis of commercial Acid Black 194 and related dyes by micellar electrokinetic chromatography

Sebastiano, Roberto; Contiello, Nunzia; Senatore, Stanislao; Righetti, Pier Giorgio; Citterio, Attilio

doi:10.1016/j.dyepig.2011.12.014

Cited by 18 publications

(8 citation statements)

References 22 publications

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“…As a consequence, many countries have established regulations for the use of natural and synthetic colorants in foods. Due to these regulatory restrictions, new methods are still demanded for rapid detection and identification of colorants in food products . Following this trend, a new method based on partial filling MEKC for the quantitative determination of Sudan dyes (I, II, III, and IV) in chilli sauces was developed Under optimized conditions, the azo dyes are baseline separated in less than 8 min with LODs ranging from 0.57 to 0.71 μg/mL (S/N > 3).…”

Section: Food Additivesmentioning

confidence: 99%

Recent advances in the application of capillary electromigration methods for food analysis and Foodomics

et al. 2013

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In this work, the analysis of foods and food components using capillary electromigration methods is reviewed. The present work presents and discusses the main CE applications performed in Food Science and Technology including the new field of Foodomics, reviewing recent results on food quality and safety, nutritional value, storage, bioactivity, as well as applications of CE for monitoring food interactions and food processing. The CE analysis of a large variety of food-related molecules with different chemical properties, including amino acids, peptides, proteins, phenolic compounds, carbohydrates, DNA fragments, vitamins, toxins, pesticides, additives, and other minor compounds is described. The use of microchips, CE-MS, and chiral-CE in food analysis is also discussed as well as other current and foreseen trends in this area of research. Following the previous review by Castro-Puyana et al. (Electrophoresis, 2012, 33, 147–167), the current review covers the papers that were published from February 2011 to February 2013.

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Section: Food Additivesmentioning

confidence: 99%

Recent advances in the application of capillary electromigration methods for food analysis and Foodomics

et al. 2013

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“…Reactive Red 23 and Reactive Blue 171) and acidic dyes. Acid Black 1 (156) and Acid Blue 193 from aqueous solutions using fly ash as an adsorbent by taking into consideration the dye concentration, adsorption temperature, time and pH value of the solution, respectively. They concluded that for reactive dyes removal the pH value of the solution should be 7.5-8.5 and for acidic dyes removal, the pH should be 5-6, respectively, with an optimal temperature of 293 K for 60 min reaction time.…”

Section: Study On the Effective Utilization Of Low-cost Absorbent Formentioning

confidence: 99%

A review on the sustainability of textile industries wastewater with and without treatment methodologies

Pattnaik

Dangayach

Bhardwaj

2018

Reviews on Environmental Health

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Abstract The textile industry in India plays a vital role in the economic growth of the nation. The growth of the textile industry not only impacts the economy of a country but also influences the global economy and mutual exchange of technology between the countries. However, the textile industry also generates an enormous quantity of waste as waste sludge, fibers and chemically polluted waters. The chemically polluted textile wastewater degrades the quality of the soil and water when it mixes with these natural resources and its dependent habitats and environment. Owing to the existing problem of solid and liquid waste, textile industries are facing major problems in environment pollution. Therefore, researchers and the textile industries are focusing on the reduction of textile wastewater and the formulation of alternative efficient treatment techniques without hampering the environment. Hence, the present literature survey mainly concentrates on the various wastewater treatment techniques and their advantages. Moreover, the focus of the study was to describe the methods for the reduction of environmental waste and effective utilization of recycled water with zero wastewater management techniques. The alternative methods for the reduction of textile waste are also covered in this investigation. Finally, this paper also suggests utilization of solid wastes after treatment of wastewater in other sectors like construction for the preparation of low-grade tiles and or bricks by replacing the cement normally used in their manufacturing.

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“…Among all the commercial dyes, CI Acid Black 194 is one of the most common blacks, used for leather, wool, polyamide (PA), and silk dyeing . Metal complex dyes of acid anionic character are used for wool and PA fibres.…”

Section: Introductionmentioning

confidence: 99%

“…AB194 tests are described by Sebastiano et al . . It was found that there were three colour isomers, which were isolated by silica flash chromatography and identified by mass spectroscopy (MS) and nuclear magnetic resonance (NMR).…”

Section: Introductionmentioning

confidence: 99%

Dyeing properties of CI Acid Blue 193 and the non‐equivalent properties of CI Acid Black 194 produced by different manufacturers

Wojciechowski

Szuster²,

Rutowicz³

et al. 2014

Coloration Technology

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This paper presents the results of research conducted into the colour properties of commercial metal complex dyes CI Acid Blue 193 and CI Acid Black 194. Three chromium(III) complexes with different colours were identified using thin-layer chromatographic analysis and then separated by preparative chromatography. It was found that colour differences of the examined dyes depend on the ratio of the three components in CI Acid Blue 193 and CI Acid Black 194, and that these differences are typical for each of the commercial products. The colour differences of the components were expressed as DS, calculated as the difference in the areas under the absorption curve of the individual components in the range 400-700 nm after spectrum normalisation. The UV-vis spectroscopic and CIELAB colorimetric properties (at 1% owf on polyamide) of eleven samples of CI Acid Black 194 were investigated. From these results, the proportions of the three components were derived. Theoretically, dyes sold under the same CI name are interchangeable. In practice, the obtained colour of the dyed material is different owing to the difference in composition namely the ratio of the components in the tested dyes. Consequently, the result of polyamide dyeing with the studied dyes CI Acid Blue 193 and CI Acid Black 194 is a redder or greener hue. It has been concluded from these findings that the production of identical dyeings may be impossible when dyes from different sources are employed.

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Analysis of commercial Acid Black 194 and related dyes by micellar electrokinetic chromatography

Cited by 18 publications

References 22 publications

Recent advances in the application of capillary electromigration methods for food analysis and Foodomics

Recent advances in the application of capillary electromigration methods for food analysis and Foodomics

A review on the sustainability of textile industries wastewater with and without treatment methodologies

Dyeing properties of CI Acid Blue 193 and the non‐equivalent properties of CI Acid Black 194 produced by different manufacturers

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