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首页> 外文期刊>Environmental Monitoring and Assessment >Dissipation kinetics of tetraconazole in three types of soil and water under laboratory condition
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Dissipation kinetics of tetraconazole in three types of soil and water under laboratory condition

机译：实验室条件下四康唑在三种土壤和水中的耗散动力学

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摘要

Laboratory experiment was conducted to understand the persistence behavior of tetraconazole in three soils of West Bengal (alluvial, red lateritic, and coastal saline) and also in water maintained at three different pH (4.0, 7.0, and 9.2) conditions. Processed soil samples (100 g) were spiked at two treatment doses: 2.5 μg/g (T_1 and 5.0 μg/g (T_2). Double distilled buffered water (200 ml) was spiked at two treatment doses: 1.0 μg/ml (T_1) and 2.00 μg/ml (T_2). The tetraconazole dissipation followed first-order reaction kinetics and the residual half-life (T_(1/2)) values in soil were found to be in the range of 66.9-77.2 days for T_1 and 73.4-86.0 days for T_2. The persistence increased in the order red lateritic ＞ new alluvial ＞ coastal saline. Interestingly, the red lateritic soil exhibited the lowest pH (5.56) and organic carbon (0.52 %) content as compared to other two soils. However, the dissipation of tetraconazole in case of water was not pH dependant. The T_(1/2) values in water were in the range of 94 to 125 days. The study indicated the persistent nature of tetraconazole in soil and water.
机译：进行了实验室实验，以了解四康唑在西孟加拉邦的三种土壤（冲积，红色红土和沿海盐水）中以及在三种pH（4.0、7.0和9.2）下保持的持久性。以两种处理剂量加标处理过的土壤样品（100 g）：2.5μg/ g（T_1和5.0μg/ g（T_2）；以两种处理剂量加标双蒸馏缓冲水（200 ml）：1.0μg/ ml（T_1） ）和2.00μg/ ml（T_2），四康唑的耗散遵循一级反应动力学，发现土壤中T_1的残留半衰期（T_（1/2））值在66.9-77.2天之间和T_2的73.4-86.0天，持久性按红色红壤＞新冲积＞沿海盐碱的顺序增加，有趣的是，红色红壤土的pH值最低（5.56），有机碳含量最低（0.52％）。但是，四康唑在水中的消散与pH值无关，水中的T_（1/2）值在94至125天之间，研究表明四康唑在土壤和水中具有持久性。

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  • 来源
    《Environmental Monitoring and Assessment》 |2013年第12期|9819-9824|共6页
  • 作者

    Samsul Alam; Dwaipayan Sengupta; Ramen Kumar Kole; Anjan Bhattacharyya;

  • 作者单位

    Institute of Pesticide Formulation Technology, Sector-20, Udyog Vihar, Gurgaon 122016 Haryana, India;

    Department of Agricultural Chemicals, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, 741252 Nadia, W.B., India;

    Department of Agricultural Chemicals, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, 741252 Nadia, W.B., India;

    Department of Agricultural Chemicals, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, 741252 Nadia, W.B., 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

    Tetraconazole; Soil; Water; Dissipation;

    机译：四康唑;泥;水;耗散;

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