Determination of Four Pesticides in Soil by Homogeneous Ionic Liquid-based Microextraction Coupled with High-performance Liquid Chromatography |
| |
Authors: | YAN Rui SHAO Ming-yuan LIANG Zhen-fen ZHANG Han-qi YU Ai-min |
| |
Institution: | 1. College of Chemistry, Jilin University, Changchun 130012, P. R. China;
2. Academy of Quality Inspection and Research in Heilongjiang Province, Harbin 150050, P. R. China |
| |
Abstract: | Homogeneous ionic liquid microextraction was developed for the simultaneceus extraction of dimethomorph, mefenacet, isoprothiolane and oxadiazon from soil. 1-Butyl-3-methylimidazolium tetrafluoroborate was used as extraction solvent, and ammonium hexafluorophosphate was used as ion-pairing agent. High-performance liquid chromatography(HPLC) was employed for separation and determination of the analytes. The calibration curves show good linear relationship(r>0.9988). The recoveries are between 74.2% and 97.9% with relative standard deviations(RSDs) lower than 5.97%. The present method is free of volatile organic solvents, and expenditures of sample, extraction time and solvent are lower, compared with ultrasonic and Soxhlet extraction. There was no obvious diffe- rence in the extraction recoveries of pesticides obtained by the three extraction methods. |
| |
Keywords: | Pesticide Soil Ionic liquid-based microextraction High-performance liquid chromatography(HPLC) |
|
| 点击此处可从《高等学校化学研究》浏览原始摘要信息 |
| 点击此处可从《高等学校化学研究》下载免费的PDF全文 |
|