三氟氯氰菊酯在绞股蓝上的残留动态研究

中国农学通报 ›› 2008, Vol. 24 ›› Issue (7): 81-84.

三氟氯氰菊酯在绞股蓝上的残留动态研究

李科明,覃伟权,李修炼,李朝绪,黄山春

收稿日期:2008-03-20 修回日期:2008-05-19 出版日期:2008-07-05 发布日期:2008-07-05

Dissipation of Cyhalothrin in Gynostemma Pentaphyllum

Li Keming, Qin Weiquan, Li Xiulian, Li Chaoxu, Huang Shanchun

Received:2008-03-20 Revised:2008-05-19 Online:2008-07-05 Published:2008-07-05

摘要/Abstract

摘要： 采用气相色谱法测定了2.5%三氟氯氰菊酯水乳剂在绞股蓝上的残留动态。绞股蓝样品用丙酮和石油醚提取，毛细管柱分离，ECD检测。研究结果表明：该方法对三氟氯氰菊酯的最小检测限为5×10-12g，在绞股蓝上的最低检测浓度为8×10-3mg/kg；三氟氯氰菊酯在绞股蓝上的半衰期约为5d，喷药30d后，在绞股蓝上的最终残留量未检出。

关键词: 土地退化, 土地退化, 国家补偿, 对策措施

Abstract: The residual dynamics of cyhalothrin in Gynostemma Pentaphyllum were determined by gas chromatography．Gynostemma Pentaphyllum samples were extracted with acetone and petroleum ether，separated by capillary column and determined with ECD.The results showed the limit of detection was 5×10-12g and the minimum concentration of detection was 8×10-3mg/kg.The half life of cyhalothrin in Gynostemma Pentaphyllum was about 5 days. The terminal residues Gynostemma Pentaphyllum were not detected after 30 days.

中图分类号:

X592

李科明,覃伟权,李修炼,李朝绪,黄山春. 三氟氯氰菊酯在绞股蓝上的残留动态研究[J]. 中国农学通报, 2008, 24(7): 81-84.

Li Keming, Qin Weiquan, Li Xiulian, Li Chaoxu, Huang Shanchun. Dissipation of Cyhalothrin in Gynostemma Pentaphyllum[J]. Chinese Agricultural Science Bulletin, 2008, 24(7): 81-84.

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