摘要
建立了超高效液相色谱-串联质谱联用法测定噻虫胺在马铃薯中的残留量。结果表明:噻虫胺在马铃薯茎秆及块茎中的平均回收率为70%~98%,相对标准偏差为2.8%~9.4%。定量限为0.01 mg/kg。噻虫胺在贵州和黑龙江马铃薯茎秆中的半衰期分别为69.3 d和7.7 d,在贵州和黑龙江马铃薯收获期时噻虫胺的含量分别为0.017 mg/kg和0.025 mg/kg。
A method for the detection of clothianidin residue and its degradation in potato was developed by QuChERS and ultra high-performance liquid chromatography coupled to tandem mass spectrometry(UPLC-MS/MS). The results suggested that the average recovery of clothianidian in stem and potato were ranged from 70%-98%, standard deviations of2.8%-9.4% at spiked levels of 0.01-0.3 mg/kg. The limit of quantification in potato was 0.01 mg/kg. The results in Guizhou and Heilongjiang were showed that the half-life of clothianidin in stem were 69.3 days and 7.7 days, and the final residue in potato at harvest time were 0.017 mg/kg and 0.025 mg/kg in Guizhou and Heilongjiang.
作者
朱峰
曾雪
陈明贵
陈才俊
魏进
廖国会
龙家寰
段婷婷
Zhu Feng;Zeng Xue;Chen Ming-gui;Chen Cai-jun;Wei Jin;Liao Guo-hui;Long Jia-huan;Duan Ting-ting(Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang 550009, China)
出处
《现代农药》
CAS
2019年第4期45-47,共3页
MODERN AGROCHEMICALS
基金
贵州省科技支撑计划(黔科合支撑[2017]2582)
贵州省科研机构服务企业行动计划(黔科合服企[2018]4004号)
关键词
噻虫胺
马铃薯
消解动态
残留
clothianidin
potato
dissipation dynamics
residue