摘要
[目的]建立吡蚜酮在小麦中的残留分析方法。[方法]样品经乙腈提取、净化后，质谱检测器检测。[结果]添加质量分数为0．02-1mg，kg时，吡蚜酮在小麦、土壤、麦苗和麦秆中平均添加回收率分别为78．7％。99．1％、72．3％。82．9％、85．8％~91．4％和82．7％~93．9％，相对标准偏差分别为1．4％一7．8％、0．8％。2．7％、4．3％。9．2％和2．9％。4．3％。吡蚜酮在小麦中的最低检出质量分数为0．02mg／kg。[结论]该方法快速简便，准确可靠。
[Aims] The method for determining pymetrozine residue in wheat was developed. [Methods] The sample was extracted with acetonitrile, purified, and detected with MS. [Results] With the addition concentration of 0.02-1 mg/kg, the average recoveries of pymetrozine in wheat, soil, seedling and straw were 78.7-99.1, 72.3-82.9, 85.8-91.4 and 82.7-93.9%, the relative standard deviations were 1.4-7.8, 0.8-2.7, 4.3-9.2 and 2.9-4.3%, respectively. The limit of quantification for pymetrozine in wheat was 0.02 mg/kg. [Conclusions] The method is fast, simple, accurate and reliable.
出处
《农药》
CAS
CSCD
北大核心
2015年第1期48-50,75,共4页
Agrochemicals
关键词
吡蚜酮
小麦
残留
pymetrozine
wheat
residue
