Comparative study of pressurized solvent extraction and traditional extraction method of imidacloprid in soil
文献类型: 外文期刊
作者: Ping Lifeng 1 ; Zhu Yahong 1 ; Zhao Hua 1 ; Hu Xiuqing 1 ; Wu Min 1 ; Li Zhen 1 ;
作者机构: 1.Zhejiang Acad Agr Sci, Inst Qual & Standard Agr Prod, Hangzhou 310021, Peoples R China
关键词: pressurized solvent extraction;traditional extraction;imidacloprid;soil
期刊名称:CHINESE JOURNAL OF ANALYTICAL CHEMISTRY ( 影响因子:1.134; 五年影响因子:0.909 )
ISSN: 0253-3820
年卷期: 2006 年 34 卷 10 期
页码:
收录情况: SCI
摘要: Pressurized solvent extraction (PSE) of imidacloprid in soil comparing to traditional method such as ultrasonic extraction, shaking extraction and Soxhlet extraction were studied. Combined with purifying using Spe-ed solid phase extraction (SPE) Cartridges Octadecyl C-18/18% and determining by reversed-phase high performance liquid chromatography, extraction effects by four kinds of extraction methods were studied.. Moreover, the recoveries: of imidacloprid by PSE under different extracted temperature were discussed. It was found that the extraction effect of imidacloprid in 3 soils by PSE under extracted condition of 80 degrees C and 10 MPa was at the best, and the mean recoveries were over 85% and the mean standard deviation were less than 2.5%. As compared to the traditional method, the recoveries by using PSE were higher than those by using ultrasonic extraction and shaking extraction, but were the same as or higher than that using soxhlet extraction. At the same time, PSE was avoided rushing for many times that required much solvent in the procedures of ultrasonic extraction and shaking extraction. And a lot of time was saved in PSE procedure, as compared to Soxhlet extraction.
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