| 刘清浩1,2，刘新涛1，倪云霞1，刘红彦1*，张玉军3.吡虫啉在金银花及土壤中的残留动态研究[J].植物保护,2011,37(1):90-92. |
| 吡虫啉在金银花及土壤中的残留动态研究 |
| Dynamics of imidacloprid residues in honeysuckles and soils |
| |
| DOI： |
| 中文关键词: 吡虫啉 高效液相色谱 金银花 土壤 残留动态 |
| 英文关键词:imidacloprid HPLC honeysuckle soil residue dynamics |
| 基金项目: |
|
| 摘要点击次数: 679 |
| 全文下载次数: 617 |
| 中文摘要: |
| 采用HPLC-DAD方法对吡虫啉在金银花及土壤中的残留动态进行研究。该方法最小检出量为0.021 2 ng，样品添加回收率为80.9%~ 84.6%，变异系数为7.74%~ 18.15%。研究结果表明：吡虫啉在金银花和土壤中的半衰期分别为1.52~ 4.65、11.07~ 19.09 d。建议金银花中吡虫啉的最大残留限量（MRL）为3.0 mg/kg；10%吡虫啉可湿性粉剂防治金银花蚜虫，用药量为30 g/hm2（有效成分），采用喷雾的施药方法，在每茬花中最多施药2次，安全施药间隔期为7 d。 |
| 英文摘要: |
| HPLC-DAD was developed to study the residual dynamics and the final residues of imidacloprid in honeysuckles and soils. The lowest detection limit of this method was 0.021 2 ng. The recovery of imidacloprid added to honeysuckle and soil samples ranged from 80.9% to 84.6% with a coefficient of variation of 7.74% to 18.15%. The results showed that the degradation half life of imidacloprid was 1.52-4.65 d in honeysuckles and 11.07-19.09 d in soils. It was suggested that the MRL of imidacloprid in honeysuckles was 3.0 mg/kg. When 10% imidacloprid WP was applied to control the aphids on honeysuckles at 30 g/hm2 (effective ingredients), one or two times of applications were allowed during each flowering period, with the safe interval of seven days from harvest. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
