| 摘要: |
| 以昆虫几丁质合成抑制剂除虫脲为有效成分，研制成供喷雾使用的除虫脲泡腾片剂。利用反相高效液相色谱法测定了除虫脲在泡腾片剂中的含量。以3龄初期粘虫为试虫，饲喂含除虫脲的玉米叶，进行室内生物测定，60 h后检查结果。供试的除虫脲泡腾片剂、可湿性粉剂的有效中浓分别为0.121 0，0.123 6 mg/L。 |
| 关键词: 除虫脲 泡腾片剂 毒力测定 制备技术 |
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| Preparation of diflubenzuron effervescent tablet and determining of toxity |
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| Abstract: |
| A formulation of effervescent pesticidal tablet suitable for dilution with water to spray was reported in this paper.A chitin-inhibiting insecticide diflubenzuron was an active ingredient (a.i.) in this formulation.A reverse phase high-performance liquid chromatography method of determining the content of diflubenzuron effervescent tablet was established.The newly enclosed 3 rd-instar larvae of Mythimna separata Walker were fed with the maize foliage of diflubenzuron and administrated in 60 h.The EC50 of effervescent tablet and wettable powder were 0.121 0,0.123 6 μg/ML respectively. |
| Key words: diflubenzuron effervescent tablet determining of toxity preparation technology |
