• 文献标题:   Octadecyl-Modified Graphene as an Adsorbent for Hollow Fiber Liquid Phase Microextraction of Chlorophenols from Honey
  • 文献类型:   Article
  • 作  者:   SUN M, CUI PL, JI SJ, TANG RX, WU QH, WANG C, WANG Z
  • 作者关键词:   hollow fiber liquid phase microextraction, graphenec18, high performance liquid chromatography, chlorophenol, honey sample
  • 出版物名称:   BULLETIN OF THE KOREAN CHEMICAL SOCIETY
  • ISSN:   0253-2964 EI 1229-5949
  • 通讯作者地址:   Agr Univ Hebei
  • 被引频次:   7
  • DOI:   10.5012/bkcs.2014.35.4.1011
  • 出版年:   2014

▎ 摘  要

Octadecyl-modified graphene (graphene-C18) was fabricated and used as adsorbent in hollow fiber liquid phase microextraction (HF-LPME) for the first time. The extraction performance of graphene-C18 reinforced BF-LPM:E was evaluated using chlorophenols as model analytes. The factors affecting the extraction efficiency, such as extraction time, pH of the sample solution, agitation rate, the concentration of graphene-C18 and salt addition were optimized. After the graphene-C18 reinforced BF-LPME of the chlorophenols from honey sample, the analytes were separated and determined by high-performance liquid chromatography. The linearity was observed in the range of 5.0-200.0 ng g(-1) for 2-chlorophenol and 3-chlorophenol, and 2.0-200.0 ng g(-1) for 2,3-dichlorophenol and 3,4-dichlorophenol, respectively. The limits of detection (S/N = 3) of the method were lower than 1.5 ng g(-1). The recoveries of the method were between 88% and 108%. The method is simple, sensitive and has been resoundingly applied to analysis of chlorophenols in honey samples.