首页|茶叶中吡虫啉农药残留的检测方法研究

茶叶中吡虫啉农药残留的检测方法研究

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
  • 维普
茶叶样品经甲醇提取,二氯甲烷反萃取,再经ENVI-18小柱净化,采用液相色谱,紫外检测器检测,测定茶叶中吡虫啉农药的残留量.茶叶中吡虫啉的添加浓度为0.1、0.5、2.5 mg/kg,其回收率范围81.5%～87.9%,相对标准偏差(RSD)≤10.2%,方法最低检出浓度为0.05 mg/kg,符合农药残留分析要求.
A Method for Determination of Imidacloprid Residue in Tea with HPLC-UV
A method was developed for determination of imidacloprid residue in tea by high performance liquid chromatography (HPLC) with UV detector. Imidacloprid in tea samples was extracted with methyl alcohol and re-extracted by dichloromethane then cleaned up with the ENVI-18 cartridge. Imdacloprid was eluted with acetonitrile:water(v/v, 30:70) solution from the cartridge and detected with HPLC. The recovery of imidacolprid ranged from 81.5%～87.9% with the RSD less than 10.2%. Practical determination limit was 0.05 mg/kg.

teaimidaclopridpesticide residuesHPLC

侯如燕、朱旭君、张正竹、蔡荟梅、宛晓春

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安徽农业大学教育部/农业部茶叶生物化学与生物技术重点开放实验室,安徽,合肥,230036

茶叶 吡虫啉 农药残留 液相色谱

国家科技部支撑计划项目农业部农业行业标准制订和修订项目

2006 BAK 02A26农财发[2006]64号

2009

茶叶科学
中国茶叶学会

茶叶科学

CSTPCDCSCD北大核心
影响因子：1.594
ISSN：1000-369X
年,卷(期)：2009.29(1)
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