Determination of aromatic amines from textiles using dispersive liquid–liquid microextraction |
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Authors: | Lu Yang Wang Yiwei Lou Caiying Zhu Yan |
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Institution: | 1. Department of Chemistry, Zhejiang University, , Hangzhou, China;2. Zhejiang Textile Testing Research Institute, , Hangzhou, China |
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Abstract: | A dispersive liquid–liquid microextraction procedure coupled with GC‐MS is described for preconcentration and determination of banned aromatic amines from textile samples. Experimental conditions affecting the microextraction procedure were optimized. A mixture of 30 μL chlorobenzene (extraction solvent) and 800 μL ACN (disperser solvent), 5 min extraction time, and 5 mL aqueous sample volume were chosen for the best extraction efficiency by the proposed procedure. Satisfactory linearity (with correlation coefficients >0.9962) and repeatability (<9.78%) were obtained for all 20 aromatic amines; detection limits attained were much lower than the standardized liquid–liquid method. The proposed method has advantages of being quicker and easier to operate, and lower consumption of organic solvent. |
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Keywords: | Aromatic amines Dispersive liquid– liquid microextraction Textiles |
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