河北省桃中氯氟氰菊酯残留量分析

Analysis on the Content of Residual Cyhalothrin in Peach in Hebei Province

氯氟氰菊酯属拟除虫菊酯类仿生物农药,具有杀虫谱广、高效、速度快、持效期长等特点。随着在生产中大量使用,其残留污染引起了人们的重视。为了解决桃生产过程中氯氟氰菊酯的残留污染,笔者用气相色谱法对河北省6个城市桃中氯氟氰菊酯残留量进行了测定。研究结果表明,衡水市桃中氯氟氰菊酯残留量最高,为0.065 5 mg/kg,远低于国家标准规定氯氟氰菊酯农药残留最大限量的0.2 mg/kg,故其残留对桃的质量安全不会造成负面影响。

Cyhalothrin belong pyrethroid imitation of biological pesticides. It has the characteristics of broad spectrum,high efficiency,high speed and long duration. With the large use in production,the residual pollution has caused people＇s attention. In order to understand peach＇s production process residual contamination pyrethroid cyhalothrin,the content of residual cyhalothrin in peach in 6 cities of Hebei Province was determined by gas chromatography. The results showed that the residual peach cyhalothrin highest content was in Hengshui,the value was 0. 065 5 mg / kg which far below the national standard cyhalothrin pesticide residues maximum limit of 0. 2 mg / kg,so the residues was the safety and quality of peach would not be adversely affected.