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PESTICIDE RESIDUES IN RASPBERRIES AND LETTUCE: EXTRACTION AND COMPARISON OF THREE CHROMATOGRAPHIC METHODS: HPLC, HPTLC AND GC

 

作者: Anne-Claire Martel,   Maurice Porthault,  

 

期刊: Journal of Liquid Chromatography & Related Technologies  (Taylor Available online 2000)
卷期: Volume 23, issue 19  

页码: 3043-3058

 

ISSN:1082-6076

 

年代: 2000

 

DOI:10.1081/JLC-100101842

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

The determination of iprodione, vinclozolin, and cymoxanil fungicide residues in raspberries and lettuce has been carried out by HPLC with an UV detector, by HPTLC with an densitometric detection, and by GC with an electron capture detector (ECD). In all cases, fungicide residues were extracted with acetone and liquid-liquid partitioning process and finally purified on silica gel. Recoveries are always higher than 70%. For iprodione, vinclozolin, and cymoxanil, respectively, the limits of detection were 0.01 ppm, 0.013 ppm, and 0.08 ppm for the HPLC method, 0.2 ppm, 0.43 ppm, and 0.5 ppm for the HPTLC method, and 0.025 ppm, 0.004 ppm, and 0.03 ppm for the GC method.

 

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