Journal ArticleDOI
Determination of banned azo dyes in consumer goods
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TLDR
In this article, an overview of the state of development of analytical procedures for the determination of such azo dyes, which are banned by the European Commission, can be found.Abstract:
Azo dyes, extensively used for coloring a variety of consumer goods, such as leather, clothes, food, and toys, can under certain conditions be reduced to form confirmed or suspected carcinogenic aromatic amines. This article gives an overview of the state of development of analytical procedures for the determination of such azo dyes, which are banned by the European Commission.read more
Citations
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Methods for the analysis of azo dyes employed in food industry--A review.
TL;DR: A comprehensive review of various analytical techniques used in the analysis of azo dyes employed in food industries of different parts of the world is presented.
Journal ArticleDOI
Perspectives for natural product based agents derived from industrial plants in textile applications – a review
TL;DR: In this paper, the most important textile applications of environmental friendly plant-based products such as fibres, polysaccharides, dyes and pigments, polyphenols, oils and other biologically active compounds are highlighted.
Journal ArticleDOI
Effective natural dye extraction from different plant materials using ultrasound
TL;DR: In this paper, the influence of ultrasound on natural colorant extraction from different potential dye yielding plant materials has been studied in comparison with magnetic stirring process as control, and the results indicate there is a significant 13-100% improvement in the extraction efficiency of the colorant obtained from different plant materials due to the use of ultrasound.
Journal ArticleDOI
Determination of banned sudan dyes in chili powder by capillary electrophoresis
TL;DR: In this article, a micellar electrokinetic capillary chromatography was used for the detection of Sudan dyes (I, II, III and IV) in spiked chili powder samples from India, Pakistan, Mexico, United States, Canada and China.
Journal ArticleDOI
Complex-forming organic ligands in cloud-point extraction of metal ions: a review.
TL;DR: This review focuses on general properties of the most frequently used organic ligands in cloud-point extraction and on literature data concerning the use of modern techniques in determination of metal ions' content in various materials.
References
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Journal ArticleDOI
Azo dyes and carcinogenic aromatic amines in cell cultures
TL;DR: It was demonstrated that released 3,3′-dimethoxybenzidine was found in the cell culture supernatants, but it did not accumulate within the cells.
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Reductive cleavage of azo compounds catalyzed by commercial zinc dust using ammonium formate or formic acid
TL;DR: Azo compounds, both symmetric and unsymmetric, are cleaved to amine(s) by using commercial zinc dust and ammonium formate or formic acid in methanol, tetrahydrofuran or dioxane at room temperature.
Journal ArticleDOI
Determination of aromatic amines formed from azo colorants in toy products.
TL;DR: A study for the determination of the aromatic amines formed after reduction of the azo colorants mostly used in toys was conducted, using Sodium dithionite as a reductive cleavage agent for the dyes and using standard addition of different quantities of amines to the colorants.
Journal ArticleDOI
Electrochemical methods for monitoring of environmental carcinogens
TL;DR: The use of modern electroanalytical techniques, namely differential pulse polarography, differential pulse voltammetry on hanging mercury drop electrode or carbon paste electrode, adsorptive strippingvoltammetry and high performance liquid chromatography with electrochemical detection for the determination of trace amounts of carcinogenic N-nitroso compounds, azo compounds, heterocyclic compounds, nitrated polycyclic aromatic hydrocarbons and aromatic and heterocycling amines is discussed.
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Harmful azo colorants in leather. Determination based on their cleavage and extraction of corresponding carcinogenic aromatic amines using modern extraction techniques.
TL;DR: In this article, the possibilities of using microwave assisted extraction (MAE) or supercritical fluid extraction (SFE) for detection of harmful azo colorants in leather were discussed.