Graphene nanoplatelets as a highly efficient solid-phase extraction sorbent for determination of phthalate esters in aqueous solution.
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%.
School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China.
Xi
X
Luo
School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China. Electronic address: zhangff@ecust.edu.cn.
FeiFang
F
Zhang
School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China.
Shunli
S
Ji
School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China. Electronic address: bcyang@ecust.edu.cn.
Bingcheng
B
Yang
School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China; Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, 116023, China.
Xinmiao
X
Liang
D000327:Adsorption; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D060766:Drinking Water / Q000032:analysis*; D004952:Esters / Q000032:analysis; D006108:Graphite / Q000737:chemistry*; D057230:Limit of Detection; D049329:Nanostructures / Q000737:chemistry*; D010795:Phthalic Acids / Q000032:analysis*; D052616:Solid Phase Extraction / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis*
D060766:Drinking Water; D004952:Esters; D010795:Phthalic Acids; D014874:Water Pollutants, Chemical; C032279:phthalic acid; D006108:Graphite
Graphene nanoplatelet; Liquid chromatography; Phthalate esters; Solid-phase extraction; Sorbent