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Risk assessment and decontamination of Quinalphos under different culinary processes in/on cabbage

机译：卷心菜内外不同烹饪过程中喹诺磷的风险评估和净化

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摘要

Quinalphos 20 AF was applied at the rate of 500 and 1,000 g a.i. ha~(-1) in cabbage for two consecutive seasons and the samples harvested at intervals of 0 (3 h after application), 2, 4, 6, 8, and 10 days interval after application. The calculated half-life values were 1.27-1.38 days and 1.12-1.24 days for cabbage heads and cropped soil, respectively. The calculated safe waiting period based on field dissipation study was 5.28-6.7 days, which indicated its persistence nature. Thus, to reduce the safe waiting period, efforts were made to decontaminate the Quinalphos residue from cabbage head by various household preparations (viz. washing, cooking, washing plus cooking, salt water dipping, dipping in boiled salt water, dipping in detergent solution, and dipping in boiled detergent solution). Statistical analysis of the data using Duncan's multiple range test revealed that various household processing substantially reduced the residue of Quinalphos in cabbage headsrnin the range of 27.72-75.01% irrespective of any dose and seasons, but none were able to satisfactorily bring down the residue below the tolerance level of 0.05 mg kg~(-1).
机译：以500和1,000克a.i.的量应用Quinalphos 20 AF。连续两个季节在白菜中获得ha〜（-1），并且以0（施用后3小时），施用后2、4、6、8和10天的间隔收获样品。白菜头和耕地的半衰期计算值分别为1.27-1.38天和1.12-1.24天。根据现场耗散研究计算出的安全等待期为5.28-6.7天，表明其持续性。因此，为缩短安全等待时间，我们努力通过各种家庭准备工作（如清洗，烹饪，洗涤加烹饪，盐水浸泡，浸泡在沸腾的盐水中，浸泡在洗涤剂溶液中，并浸入煮沸的洗涤剂溶液中）。使用Duncan多范围试验对数据进行统计分析后发现，无论使用何种剂量和季节，各种家庭处理都将白菜头中的喹诺磷的残留量降低了27.72-75.01％，但没有一个能够令人满意地将残留量降低到低于耐受水平为0.05 mg kg〜（-1）。

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  • 来源
    《Environmental Monitoring and Assessment》 |2010年第4期|369-377|共9页
  • 作者

    Md. Wasim Aktar; Dwaipayan Sengupta; Swarnali Purkait; Ashim Chowdhury;

  • 作者单位

    Pesticide Residue Laboratory,Department of Agricultural Chemicals,Bidhan Chandra Krishi Viswavidyalaya,Mohanpur-741252, Nadia, West Bengal, India;

    Department of Agricultural Chemistry and Soil Science, Institute of Agricultural Science,University of Calcutta, Kolkata, West Bengal, India;

    Department of Agricultural Chemistry and Soil Science, Institute of Agricultural Science,University of Calcutta, Kolkata, West Bengal, India;

    Department of Agricultural Chemistry and Soil Science, Institute of Agricultural Science,University of Calcutta, Kolkata, West Bengal, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    quinalphos; residues; decontamination; cabbage; household preparations;

    机译：奎那磷残留物;去污;卷心菜;家庭用品;

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