期刊
ANALYTICAL METHODS
卷 12, 期 31, 页码 3954-3963出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ay01153c
关键词
-
资金
- Startup Funding of Northwest University for setting up the Research Center of Analytical Instrumentation
- Key Research and Development Program in Shaanxi Province of China [2019ZDLSF01-03]
Widespread use of organophosphorus pesticides poses serious environmental threats, and hence calls for effective analysis methods for these classes of compounds. In this study, a lab-made graphene-based solid-phase microextraction (SPME) fiber was fabricated by the sol-gel method and combined with a gas chromatography-flame photometry detector (GC-FPD) to realize the detection of trace OPPs in water samples. Compared to the commercial fiber coatings, the new sol-gel graphene fiber coatings showed advantages of good durability and solvent resistance, which were attributed to the hydrophobic and antibacterial properties of the functionalized graphene and 3-(trimethoxysilyl)propyldimethyloctadecylammonium chloride (QAS). A headspace SPME method in combination with a GC-FPD was established to evaluate the performance of the novel fibers. The proposed method showed a good linear relationship for the eight OPPs (R-2 >= 0.9957) in the concentration range of 1 to 1000 mu g L-1, with limits of quantification of 0.11-3.37 mu g L(-1)and limits of detection of 0.03-1.01 mu g L-1. Furthermore, the developed method also exhibited good recoveries for the analysis of OPPs both in rainwater and lake water, which demonstrates that this method is an alternative choice for multi-residue analysis of OPPs, and it has the potential for broader applications in the future.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据