摘要
[目的]评价新型砜类杀菌剂二氯噁菌唑在马铃薯和土壤中的残留水平。[方法]马铃薯、马铃薯植株和土壤中二氯噁菌唑使用改进的Qu ECh ERS方法提取,超高效液相色谱法(UPLC)分析。2014年在贵阳、宿州进行了规范残留试验,测定了马铃薯和土壤中二氯噁菌唑的残留水平。[结果]二氯噁菌唑在马铃薯等3种基质中的定量限均为0.01 mg/kg,添加水平为0.01、0.1、1.0 mg/kg时,平均回收率为83.45%~101.1%,相对标准偏差(RSD)为1.45%~8.22%;在马铃薯和土壤中残留量<0.01 mg/kg。[结论]建立的方法能够满足二氯噁菌唑在马铃薯和土壤总的痕量分析要求。
[Aims] In order to evaluate the residue levels of the new sulfone fungicide erlvejunzuo（ELEJZ） in potato and soil. [Methods] The ELEJZ residues in soil, potato and potato foliage was extracted using a modified QuEChERS method and analyzed by ultra-performance liquid chromatography. Residual experiment was carried out in Guiyang and Suzhou city in 2014. The residue levels of ELEJZ in potato and soil were investigated. [Results] The limits of quantification（LOQ） of ELEJZ in three matrices were 0.01 mg/kg. When the fortified concentrations were 0.01, 0.1 and1.0 mg/kg, the average recoveries were 83.45-101.1% with relative standard deviations of 1.45-8.22%. The terminal residue levels in potato and soil were 〈 0.01 mg/kg. [Conclusions] The reported method could meet the requirement for the analysis of ELEJZ in trace amount in soil and potato.
作者
黄敏
余维维
龚瑾
杨国强
黄安香
胡德禹
张侃侃
HUANG Min, YU Wei-wei, GONG Jin, YANG Guo-qiang, HUANG An-xiang, HU De-yu, ZHANG Kan-kan(State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang 550025, China)
出处
《农药》
CAS
CSCD
北大核心
2018年第9期678-681,共4页
Agrochemicals
基金
贵州省科技计划项目(黔科合成果[2017]4108)
