...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Agricultural and Food Chemistry >Rapid Detection of Atrazine and Metolachlor in Farm Soils: Gas Chromatography-Mass Spectrometry-Based Analysis Using the Bubble-in-Drop Single Drop Microextraction Enrichment Method
【24h】

Rapid Detection of Atrazine and Metolachlor in Farm Soils: Gas Chromatography-Mass Spectrometry-Based Analysis Using the Bubble-in-Drop Single Drop Microextraction Enrichment Method

机译：农田土壤中阿特拉津和甲草胺的快速检测：基于液滴单滴微萃取富集法的气相色谱-质谱分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Tracking of metolachlor and atrazine herbicides in agricultural soils, from spraying through to harvest, was conducted using our recently reported "bubble-in-drop single-drop microextraction" method. The method showed good linearity (R~2 = 0.999 and 0.999) in the concentration range of 0.01-1.0 ng/mL with LOD values of 0.01 and 0.02 ng/mL for atrazine and metolachlor, respectively. Sonication methods were poor at releasing these herbicides from the soil matrixes, while hot water extraction readily liberated them, providing an efficient accessible alternative to sonication techniques. Good recoveries of 97% and 105% were shown for atrazine and metolachlor, respectively, from the soil. The spiking protocol was also investigated, resulting in a traceless spiking method. We demonstrate a very sensitive technique by which to assess, for example, the length of residence of pesticides in given soils and thus risk of exposure.
机译：使用我们最近报道的“滴滴单滴微萃取”方法，对从喷洒到收获的农业土壤中的异丙草胺和at去津除草剂进行跟踪。该方法在0.01-1.0 ng / mL的浓度范围内显示出良好的线性（R〜2 = 0.999和0.999），阿特拉津和异丙甲草胺的LOD值分别为0.01和0.02 ng / mL。超声处理方法很难将这些除草剂从土壤基质中释放出来，而热水萃取则容易释放它们，为超声处理技术提供了一种有效的替代方法。结果表明，土壤中的阿特拉津和异丙甲草胺的回收率分别为97％和105％。还研究了加标协议，从而形成了无痕加标方法。我们展示了一种非常敏感的技术，可用来评估例如农药在给定土壤中的停留时间，从而评估其暴露的风险。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号