期刊
TALANTA
卷 120, 期 -, 页码 71-75出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2013.11.079
关键词
Graphene nanoplatelet; Solid-phase extraction; Phthalate esters; Liquid chromatography; Sorbent
资金
- National Science and Technology Major Science Instrument Project of the Ministry of Science and Technology of China [2012YQ090229]
- National Natural Science Foundation of China [21075038, 21177040]
Graphene nanoplatelet (GN) as a solid-phase extraction (SPE) sorbent in combination with high performance liquid chromatography has been used for the determination of five phthalate esters (PAEs) in aqueous solution. The operation parameters affecting the extraction efficiency were optimized. Comparative studies showed that GN was superior to other common SPE sorbents in terms of recovery and adsorption capacity. Under optimization conditions, detection limits of 0.09-0.33 ng mL(-1) were achieved for five PAEs and enrichment factors of 402-711 for the analytes were obtained. The proposed method was successfully applied for the determination of PAEs in tap water and drink samples with recoveries ranging from 87.7% to 100.9%. (C) 2013 Elsevier B.V. All rights reserved.
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