Graphene-based solid-phase extraction disk for fast separation and preconcentration of trace polycyclic aromatic hydrocarbons from environmental water samples

• Published in: Journal of separation science Vol. 36; no. 11; pp. 1834 - 1842
• Main Authors: Wang, Zonghua, Han, Qiang, Xia, Jianfei, Xia, Linhua, Ding, Mingyu, Tang, Jie
• Format: Journal Article
• Language: English
• Published: Weinheim Blackwell Publishing Ltd 01.06.2013; Wiley; Wiley Subscription Services, Inc
• Subjects: Analysis methods; Analytical chemistry; Applied sciences; Chemistry; Chromatographic methods and physical methods associated with chromatography; Cyclohexane; Drinking water and swimming-pool water. Desalination; Exact sciences and technology; Gas chromatographic methods; Gas chromatography mass spectrometry; Graphene; Graphite - chemistry; Microbiology; Natural water pollution; Pollution; Polycyclic aromatic hydrocarbons; Polycyclic Aromatic Hydrocarbons - chemistry; Polycyclic Aromatic Hydrocarbons - isolation & purification; Protozoa; Solid Phase Extraction - instrumentation; Solid Phase Extraction - methods; Solid-phase extraction disk; Water Pollutants, Chemical - chemistry; Water Pollutants, Chemical - isolation & purification; Water treatment and pollution; Gas chromatography mass spectrometry; Solid phase extraction; Chemical analysis; X ray; Chemical enrichment; Surface structure; Persistent organic pollutant; Characterization; Freshwater environment; Rapid technique; Sample preparation; Polycyclic aromatic hydrocarbons; Photoelectron spectrometry; Stream; Raman spectrometry; Solid-phase extraction disk; Adsorbent; Quantitative analysis; Trace analysis; Scanning electron microscopy; Hydrocarbon; Coupled method; Polycyclic aromatic compound; Tap water; Gas chromatography; Transmission electron microscopy; Graphene; Morphology; Preparation; Surface water; Water quality; Water pollution; River water; Mass spectrometry
• ISSN: 1615-9306; 1615-9314
• DOI: 10.1002/jssc.201300186

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.