Three dimensional phytic acid-induced graphene as a solid-phase microextraction fiber coating and its analytical applications for nerolidol in tea  

作　　者：Shujun Xia Jing Dong Yiying Chen Yiru Wang Xi Chen 

机构地区：[1]Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering Xiamen University [2]State Key Laboratory of Marine Environmental Science, Xiamen University

出　　处：《Chinese Chemical Letters》2018年第1期107-110,共4页中国化学快报（英文版）

基　　金：financially supported by Natural Science Foundation of Fujian Province(No. 2015J01058);National Found for Fostering Talents of Basic Science(No. J1310024)

摘　　要：In this work, three dimensional phytic acid-induced graphene coating was prepared by hydrothermal synthesis and fabricated on a stainless-steel wire using physical coating method as a solid phase microextraction （SPME） coating. The graphene coating revealed high specific surface area, extraordinary electrical conductivity and excellent chemical stability. Coupled with gas chromatography-flame ionization detector （GC-FID）, the home-made phytic acid-induced graphene SPME fiber exhibited excellent extraction efficiency for the analysis of nerolidol in tea samples. Under the optimized conditions, the linear range of working curve was found to be 1-1000 ng/g, and the limit of detection of nerolidol was 0.18 ng/g. The coefficient variation of repeatability for each single fiber and reproducibility for fiber to fiber was less than 3.9Yg and 8.3~, respectively.In this work, three dimensional phytic acid-induced graphene coating was prepared by hydrothermal synthesis and fabricated on a stainless-steel wire using physical coating method as a solid phase microextraction （SPME） coating. The graphene coating revealed high specific surface area, extraordinary electrical conductivity and excellent chemical stability. Coupled with gas chromatography-flame ionization detector （GC-FID）, the home-made phytic acid-induced graphene SPME fiber exhibited excellent extraction efficiency for the analysis of nerolidol in tea samples. Under the optimized conditions, the linear range of working curve was found to be 1-1000 ng/g, and the limit of detection of nerolidol was 0.18 ng/g. The coefficient variation of repeatability for each single fiber and reproducibility for fiber to fiber was less than 3.9Yg and 8.3~, respectively.

关 键 词：Phytic acid-induced grapheneSolid phase microextractionGas chromatographyNerolidolTea 

分 类 号：O6[理学—化学]