西宁市不同蔬菜种类农药残留检出率的规律性研究
2015-10-21吴桂玲


摘要 [目的]掌握蔬菜中农药残留检出率的规律性,为提高西宁市蔬菜质量安全提供参考。[方法]2011~2013年在西宁市规模化蔬菜生产基地和农贸市场共采集蔬菜样品784个,采用气相色谱法对其进行农药残留检测。[结果]西宁市蔬菜农药残留检出率具有一定的规律性,1和3月是农药检出的高峰期,其中豆类、甘蓝类和根菜类是农药残留检出率较高的蔬菜种类。农药残留主要集中在三唑酮、甲拌磷、氧化乐果;其次为乙酰甲胺磷、毒死蜱、腐霉利。 [结论]为蔬菜生产过程中农药残留的控制提供了理论依据。
关键词 农药残留;蔬菜;检出率
中图分类号 S481.+8 文献标识码
A 文章编号 0517-6611(2015)03-116-04
Study on the Regularity of Detection Rate of Different Types of Pesticide Residues in Vegetable of Xining City
WU Guiling
(Xining City Agricultural Products Quality and Safety Detection Center, Xining, Qinghai 810016)
Abstract [Objective] To master the regularity of detection rate of pesticide residue in vegetables, and provide reference for improving quality and safety of vegetables in Xining City. [Method] From 2011 to 2013, wholesale market, farmers market and vegetable production base, collect the total samples of vegetables 784 were determined by gas chromatography GC. [Result] Vegetable pesticide residue detection rate in Xining has certain regularity. January and March is at the peak of pesticide detection and pesticide residue detection rate higher species including legume vegetables, Brassica vegetable and root vegetable. The main residue pesticides are Traidimefon, Phorate, Omethoate, and the next are Acephate, Chlorpyrifos, Procymidone. [Conclusion] The study can provide theoretical basis for control of pesticide residues in vegetable production.
Key words Pesticide residues; Vegetables; Detection rate
基金項目 青海省西宁市应用和产业技术研究与开发项目(2011T06)。
作者简介 吴桂玲(1983- ),女,青海乐都人,助理研究员,从事农产品分析检测工作。
收稿日期 20141005
农业现代化程度越高,农药的使用量就越大。减少农药残留,确保农产品质量安全是我国农业和农药管理的工作目标[1]。蔬菜农药残留问题是制约我国蔬菜质量安全的主要因素,也是全社会高度关注的热点。蔬菜因其生长期短、病虫害多等特点成为农药使用量最大的农产品[2-3],目前蔬菜中常用的农药种类主要包括有机磷、有机氯及拟除虫酯和氨基甲酸酯类农药,不同种类农药具有不同特性,其中有机磷类具有防治对象多、应用范围广等特点,近年来在农业生产中被广泛应用[4-7]。为提高西宁市蔬菜质量安全,每年西宁市各部门都要开展蔬菜质量安全的监督抽检工作,但是还没有对蔬菜农药残留检出率的规律性进行研究,在一定程度上影响了检测数据的有效利用。……
