期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1048, 期 2, 页码 257-262出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2004.07.059
关键词
metallic wires; electroplating; fiber preparation; polyaniline; aromatic amines; solid-phase microextraction
A novel polyaniline (PANI) coating was prepared on a stainless-steel wire for solid-phase microextraction by electroplating method. For better mechanical strength, the stainless-steel wire was used instead of the fused silica fiber. The electroplating method had advantages of ease of preparation and simple equipments. The PANI fiber was evaluated by analyzing six aromatic amines (aniline, N,N-dimethylaniline, m-methylaniline, 2,4-dimethyl aniline, 2-chloroaniline, 3,4-dichloroaniline) in water. After the analytical procedure was optimized, the linearity was from 4.8 to 2.75 x 10(4) mug L-1 and the detection limits was from 0.019 to 1.06 mug L-1. Relative standard deviations were found to be 2.02-6.00%. Good recoveries were obtained when wastewater samples were analyzed. (C) 2004 Elsevier B.V. All rights reserved.
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