期刊
ANALYTICAL CHEMISTRY
卷 86, 期 24, 页码 12279-12284出版社
AMER CHEMICAL SOC
DOI: 10.1021/ac5035083
关键词
-
资金
- Spain's Ministry of Innovation and Science [CTQ2011-23790]
- Junta de Andalucia [FQM4801]
The paper proposes a simple and sensitive approach for the preconcentration and determination of graphene oxide (GO) in environmental samples by using fluorescent graphene quantum dots (GQDs). The method is based on the preconcentration of GO on a cellulose membrane and their subsequent elution prior to fluorescence analysis of the quenching effect produced on the GQD solution due to the hydrophobic interactions between GO and GQDs. The limit of detection was 35 mu g L-1. The precision, for a 200 mu g L-1 concentration of GO, is 5.16%. The optimized procedure has been successively applied to the determination of traces of GO in river water samples.
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