Journal
JOURNAL OF SEPARATION SCIENCE
Volume 28, Issue 16, Pages 2218-2224Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.200500091
Keywords
composite polyaniline (CPANI); electroplating method; fiber preparation; metal wires; solid phase microextraction
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For SPME-HPLC, metal wires with better mechanical strength are preferred over the fused silica fibers. In this article, a novel composite polyaniline (CPANI) doped with PEG and polydimethylsiloxane coating (CPANI fiber) was prepared on a stainless steel wire by a three-electrode system: the fiber was used as the work electrode, a calomel electrode and a platinum electrode were used as the reference and the counter electrodes, respectively. To evaluate the new CPANI coating, the coating was used to extract three kinds of phenols (bisphenol A, 4-n-nonylphenol, and 4-tert-octylphenol) in water samples by direct-SPME mode and then desorbed in commercial SPME-HPLC interface to separation. The extraction procedure was also optimized. Five real water samples were investigated. Good recoveries were gained when environmental samples were analyzed.
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