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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (7): 180-184.doi: 10.11924/j.issn.1000-6850.2014-2471

• 植物保护 农药 • 上一篇    下一篇

双氟磺草胺在土壤中的残留分析

赵亚洲   

  1. 贵州省分析测试研究院
  • 收稿日期:2014-09-11 修回日期:2015-01-04 接受日期:2015-01-23 出版日期:2015-04-03 发布日期:2015-04-03
  • 通讯作者: 赵亚洲
  • 基金资助:
    中德国际合作项目“化学品生态毒理测试与风险评估技术合作研究”(2011DFB41640)；省基金，黔林科合[2012]18号；黔科合院地合[2012]7003号。

Residue Analysis of florasulam in Soil

  • Received:2014-09-11 Revised:2015-01-04 Accepted:2015-01-23 Online:2015-04-03 Published:2015-04-03

摘要： [目的]建立双氟磺草胺在土壤中的残留分析方法。[方法]土壤样品经乙腈振荡提取，静置后过膜，HPLC-PAD直接测定。[结果]当添加质量分数为1.0和10.0 mg/kg时，双氟磺草胺在黄壤、水稻土和石灰土中的添加平均回收率分别为82.4%～86.6%、83.0%～87.7%和85.6%～85.9%，RSD分别为1.9%～2.3%、0.6%～8.2%和2.3%～3.4%。方法最小检出量为1.0×10-9g，土壤中最小检出浓度为1.0 mg/kg。[结论]该方法操作简单，样品分析速度快，准确度、精密度及灵敏度均满足农药残留分析的要求，可用于土壤中双氟磺草胺残留量的检测。

关键词: 稻瘟病, 稻瘟病, 抗病基因, 定位与克隆, 育种应用

Abstract: The paper aims to establish an analytical method for determining florasulam residues in soil. Soil samples with acetonitrile were shaking extraction, then went through the membrane after standing, measured by HPLC-PAD directly. The results showed that with the addition concentration of 1.0 and 10.0 mg/kg, the average recoveries of florasulam in black soil, red soil, paddy soil were 82.4%-86.6%, 83.0%-87.7% and 85.6%-85.9%; the coefficient of variation were 1.9%-2.3%, 0.6%-8.2% and 2.3%-3.4%. The detection limit of florasulam was 1.0×10-9 g, the quantification limit was 1.0 mg/kg. The method is simple and fast sample analysis. Acuracy, precision and sensitivity all meet the requirement of pesticide residues analysis, and can be used for the determining florasulam residue in soil.