Octadecyl-Modified Graphene as an Adsorbent for Hollow Fiber Liquid Phase Microextraction of Chlorophenols from Honey 


Vol. 35,  No. 4, pp. 1011-1015, Apr.  2014
10.5012/bkcs.2014.35.4.1011


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  Abstract

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 HF-LPME 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 HF-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.

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  Cite this article

[IEEE Style]

M. Sun, P. Cui, S. Ji, R. Tang, Q. Wu, C. Wang, Z. Wang, "Octadecyl-Modified Graphene as an Adsorbent for Hollow Fiber Liquid Phase Microextraction of Chlorophenols from Honey," Bulletin of the Korean Chemical Society, vol. 35, no. 4, pp. 1011-1015, 2014. DOI: 10.5012/bkcs.2014.35.4.1011.

[ACM Style]

Meng Sun, Penglei Cui, Shujing Ji, Ranxiao Tang, Qiuhua Wu, Chun Wang, and Zhi Wang. 2014. Octadecyl-Modified Graphene as an Adsorbent for Hollow Fiber Liquid Phase Microextraction of Chlorophenols from Honey. Bulletin of the Korean Chemical Society, 35, 4, (2014), 1011-1015. DOI: 10.5012/bkcs.2014.35.4.1011.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949