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分散液液微萃取—高效液相色譜法測(cè)定食品中農(nóng)藥的含量doc-資料下載頁

2025-07-15 04:46本頁面
  

【正文】 ersed liquidliquid microextraction with high performance liquid chromatography ZHANG Liangwen JIAN Yinghong(College of Environmental and Biological Engineering, JiLin Institute of Chemical Technology, JiLi132022,China)Abstract:The experiment used a new extraction and analytical method of pesticides in food (in case of atrazine), which is dispersed liquidliquid microextraction high performance liquid chromatography. Dispersive liquidliquid microextraction conditions optimized for the: Water sample volume: 6mL。 extractant: chlorobenzene, 。 dispersant: acetone, 。 centrifugation time: 4min, salinity %, pH = . Optimum conditions, the enrichment factor (EF) and extraction recovery (ER) ranged from , and % %. Atrazine39。s detection limit is 1μg / L. Atrazine in water samples spiked concentration 40,60,80 μg / L relative recoveries were % %, % % and % %. This method Determination of atrazine leaching solution easy and fast.Key words: dispersion liquid microextraction。 Atrazine。 performance liquid chromatography。 extraction recovery 11 / 11
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