【摘 要】
：
A fast and simple method, which involves continuous-flow microextraction (CFME) followed by high-performance liquid chromatography (HPLC) and variable-wavelength detection (VWD), has been developed to
【机 构】
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Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Centr
【出 处】
：
DaLian Internationall Symposia and Exhibition on Chromatogra
论文部分内容阅读
A fast and simple method, which involves continuous-flow microextraction (CFME) followed by high-performance liquid chromatography (HPLC) and variable-wavelength detection (VWD), has been developed to facilitate the identification and quantification of three phthalate esters (dimethyl phthalate (DMP), diethyl phthalate (DEP), and di-n-butyl phthalate (DnBP)) in water samples.Experimental parameters affecting the extraction efficiency, such as extraction solvent, solvent drop size, flow rate of sample solution, extraction time and addition of salt were investigated.Under the optimal conditions, the method yields a linear calibration curve in the concentration range from 0.01 tol0 μtg mE-1 for the target analysis.The limits of detection (LOD) of DMP, DEP and DnBP were 2, 1 and 5 ng mL-1 respectively, and relative standard deviations (RSDs) at the 100 ng mL-1 level were 7.6%, 3.2% and 8.6% respectively (n=6).Lake water, tap water and bottled mineral water samples were successfully analyzed using the proposed method.
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