Graphene‐based solid‐phase extraction disk for fast separation and preconcentration of trace polycyclic aromatic hydrocarbons from environmental water samples |
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| Authors: | Zonghua Wang Qiang Han Jianfei Xia Linhua Xia Mingyu Ding Jie Tang |
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| Institution: | 1. Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University, , Shandong, China;2. Department of Chemistry, Beijing Key Laboratory for Microanalytical Methods and Instrumentation, Tsinghua University, , Beijing, China;3. National Institute for Materials Science, , Tsukuba, Japan |
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| Abstract: | Graphene has great potentials for the use in sample preparation due to its ultra high specific surface area, superior chemical stability, and excellent thermal stability. In our work, a novel graphene‐based SPE disk was developed for separation and preconcentration of trace polycyclic aromatic hydrocarbons from environmental water samples. Based on the strong π–π stacking interaction between the analytes and graphene, the analytes extracted by graphene were eluted by cyclohexane and then determined by GC‐MS. Under the optimized conditions, high flow rate (30 mL/min) and sensitivity (0.84–13 ng/L) were achieved. The proposed method was successfully applied to the analysis of real environmental water samples with recoveries ranging from 72.8 to 106.2%. Furthermore, the property of anticlogging and reusability was also improved. This work reveals great potentials of graphene‐based SPE disk in environmental analytical. |
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| Keywords: | Gas chromatography mass spectrometry Graphene Polycyclic aromatic hydrocarbons Solid‐phase extraction disk |
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