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依次通过酸水煮沸、煤油萃取和不同酸碱度下氯仿萃取煤油层 ,从无叶假木贼中得到两个提取部位。田间杀虫试验证明其中一部位有良好的杀虫效果。对该杀虫有效部位进行化学成分分析 ,通过薄层层析和气相色谱 质谱方法 ,证明有效部位的主要成分是毒藜碱和羽扇豆碱。
Followed by boiling water, kerosene extraction and extraction of kerosene under different pH of the chloroform extract obtained from the leaves of two parts. Field insecticide test proved that one part has a good insecticidal effect. Chemical constituents of the insecticidally effective sites were analyzed by TLC and gas chromatography mass spectrometry to show that the main components of the active site were the alkali and lupine bases.