Ultrasound-assisted emulsification solidified floating organic drop microextraction for the determination of trace amounts of copper in water samples

作     者：Qingyun CHANG Jingwen ZHANG Xin DU Jingjun MA Jingci LI 

作者机构：Hebei Key Laboratory of Bioinorganic ChemistryCollege of ScienceAgricultural University of HebeiBaoding 071001China 

出 版 物：《Frontiers of Environmental Science & Engineering》 (环境科学与工程前沿（英文）)

年 卷 期：2010年第4卷第2期

页      面：187-195页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Research Development Foundation of Agricultural University of Hebei 

主　　题：ultrasound-assisted emulsification solidified floating organic drop microextraction flame atomic absorption spectrometry preconcentration copper 

摘      要：A simple and efficient liquid-phase microextraction(LPME)technique was developed using ultrasound-assisted emulsification solidified floating organic drop microextraction(USAE-SFODME)combined with flame atomic absorption spectrometry,for the extraction and determination of trace copper in water samples.1-(2-Pyridylazo)-2-naphthol(PAN)was used as chelating *** efficiency factors(including extraction solvent type,extraction volume,time,temperature,and pH),the amount of the chelating agent,and salt effect were investigated and *** the optimum extraction conditions,figures of merit of the proposed method were *** calibration graph was linear in the range of 20–600 mg·L^(–1)with a detection limit of 0.76 mg·L^(–1).The relative standard deviation(R.S.D)for ten replicate measurements of 20 and 400 mg·L^(–1)of copper was 3.83%and 2.65%,***,the proposed method was applied to tap water,river water,and sea water,and accuracy was assessed through the analysis of certified reference water or recovery experiments.