摘要: |
采用高效液相色谱法研究了1.8%阿维菌素乳油在枸杞果实内的残留动态和最终残留量。结果表明,阿维菌素在枸杞果实内消解较快,在6和12 mg/L浓度下,施药后7 d枸杞果实内的阿维菌素残留分别为0.008和0.010 mg/kg,7 d后均未检出阿维菌素残留,半衰期为1.34~1.50 d,在使用推荐浓度6 mg/L、施药2次的情况下,最后一次施药7 d后,在枸杞果实内未检出阿维菌素,说明阿维菌素在推荐剂量下使用对枸杞果实的食用是安全的。 |
关键词: 阿维菌素 枸杞 残留动态 高效液相色谱 |
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基金项目:国家“十五”重大专项(2001BAT01A58-03) |
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Residues of abamectin in wolfberry by HPLC |
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Abstract: |
The studies on the final residue and dynamic degradation of 1.8% abamectin EC in wolfberry were carried out by HPLC.and the results showed that abamectin dissipated rapidly in wolfberry fruit.Spraying at 6 and 12 mg/L with an interval of 7 d,the residue was 0.008 and 0.010 mg/kg in wolfberry fruit,the half life of Abamectin in wolfberry fruit was 1.34-1.50 d.and abamectin was not defected after 7 d of last spray at dilution of 6 mg/L.Thus,this pesticide is safe when applied on wolfberry fruit at recommended rates. |
Key words: abamectin wolfberry residue dynamic HPLC |