Determination of Endosulfan in Water Samples Using Dispersive Liquid-liquid Micro-extraction and Experimental Design for Optimization

被引：0

作者：

Shegefti, S. ^{[1
]}

Sereshti, H. ^{[1
]}

Samadi, S. ^{[1
]}

机构：

[1] Univ Tehran, Coll Sci, Sch Chem, Tehran, Iran

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH | 2010年 / 4卷 / 02期

关键词：

Endosulfan; Pesticide; Dispersive liquid-liquid micro extraction; Gas chromatographymass spectrometry; Experimental design; SOLID-PHASE MICROEXTRACTION; CHROMATOGRAPHY-MASS SPECTROMETRY; SINGLE-DROP MICROEXTRACTION; ELECTRON-CAPTURE DETECTION; IN-GROUND WATER; GAS-CHROMATOGRAPHY; PESTICIDE-RESIDUES; ORGANOPHOSPHORUS PESTICIDES; ORGANOCHLORINE PESTICIDES; CENTRAL COMPOSITE;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Water contamination due to the wide variety of pesticides used in agriculture is a global environmental pollution problem. In order to reach at sub-mu gL(-1) levels of detection, an efficient extraction technique is required. A simple, fast and economical method, dispersive liquid-liquid micro extraction (DLLME), followed by gas chromatography-mass spectrometry was assessed for determining endosulfan in water samples. Experimental parameters which control the performance of DLLME, such as extraction and disperser solvents type and their volumes, temperature, and salt addition were studied by experimental design. The main factors affecting the extraction efficiency, volumes of disperser and extraction solvents, were optimized by response surface method. Under optimum conditions, the method was linear over the range 0.1-50 mu g/L. The enrichment factor and extraction recovery were 163.4 and 63.73, respectively. Correlation coefficient and limit of detection (LODs) are 0.9996, 20 ng/L, respectively.

引用

页码：237 / 246

页数：10

共 26 条

[1] Solid-phase microextraction and gas chromatography with mass spectrometric detection for the determination of pesticides in aqueous samples [J].