The effect of perspiration on photo-induced chemical reaction of azo dyes and the determination of aromatic amine products

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• 作者：Haiyan Li^a ; ^b ; ^{echohyli@163.com} ; Zhongduo Xiong^b ; Xibin Dai^b ; Qinqfu Zeng^b
• 关键词：Perspiration ; Azo dyes ; Photochemical reaction ; Aromatic amines ; Liquid phase micro-extraction ; Capillary electrophoresis
• 刊名：Dyes and Pigments
• 出版年：2012
• 出版时间：July 2012
• 年：2012
• 卷：94
• 期：1
• 页码：55-59
• 全文大小：395 K

文摘

In order to investigate the impact of perspiration on photo-induced chemical reaction of azo dyes and the carcinogenic aromatic amine products produced from the reaction, we have carried out experimental studies on the photochemical reaction of C.I. Reactive Red 2 mixed with American Association of Textile Chemists and Colorists£¨AATCC£©standard artificial perspiration. UV-vis spectroscopic technique was employed to monitor the reaction processes, and the reaction products were analyzed by hollow fiber protected liquid-liquid-liquid phase micro-extraction with capillary electrophoresis£¨HF-LLLME-CE). The results showed that perspiration had remarkable influence on the photochemical reaction of azo dyes. Aromtic amines formed during the photochemical process as a result of reduction of azo dyes by organic components in perspiration. The HF-LLLME-CE methodology was validated in analyzing aromatic amines produced from the photochemical degradation of azo dye C.I. Reactive Red 2 and C.I. Acid Red 35 mixed with artificial perspiration.