Application of a solid-phase microextraction fiber coated with a graphene oxide-poly(dimethylsiloxane) composite for the extraction of triazoles from water

被引：10

作者：

Li, Zhi ^{[1
]}

Ma, Ruiyang ^{[2
]}

Zhang, Guijiang ^{[1
]}

Zhang, Shuaihua ^{[1
]}

Wang, Chun ^{[1
]}

Wu, Qiuhua ^{[1
]}

Wang, Zhi ^{[1
]}

机构：

[1] Agr Univ Hebei, Dept Chem, Coll Sci, Baoding, Peoples R China

[2] Agr Univ Hebei, Coll Landscape & Travel, Baoding, Peoples R China

来源：

JOURNAL OF SEPARATION SCIENCE | 2016年 / 39卷 / 16期

基金：

中国国家自然科学基金;

关键词：

Gas chromatography; Graphene oxide; Sol-gel process; Solid-phase microextraction; Triazole fungicides; POLYCYCLIC AROMATIC-HYDROCARBONS; PERFORMANCE LIQUID-CHROMATOGRAPHY; WALLED CARBON NANOTUBES; ENVIRONMENTAL WATER; MASS-SPECTROMETRY; AQUEOUS SAMPLES; TRACE ANALYSIS; STEEL WIRE; PESTICIDES; HEADSPACE;

D O I：

10.1002/jssc.201600485

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A solid-phase microextraction fiber was prepared by mixing graphene oxide and hydroxyl-terminated polydimethylsiloxane together and then coating the mixture on the surface of etched stainless-steel wire by sol-gel technology. After aging by heating, the graphene oxide-polydimethylsiloxane composite coated fiber was used for the direct solid phase microextraction of triazole fungicides from water samples. The properties of the graphene oxide-polydimethylsiloxane coating were characterized by transmission electron microscopy and thermogravimetric analysis. And the chemical stability of the coating was tested as well. Several important experimental parameters that could influence the extraction efficiency such as desorption temperature and time, extraction temperature and time, sample pH and stirring rate, were investigated and optimized. Under the optimized conditions, the limits of detection were in the range from 0.01 to 0.03 g/L. The results indicated that the homemade fiber had the advantages of good thermal and chemical stability and high extraction efficiency, which was successfully applied to the analysis of triazoles in water samples.

引用

页码：3171 / 3177

页数：7

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