摘要
[目的]验证5种双酰胺类杀虫剂在大豆-玉米带状复合种植模式下的安全性.[方法]建立5种药剂在大豆、玉米等基质中的残留分析方法并对田间试验样品进行分析,对比我国已制定的最大残留限量结合长期膳食风险评估模型,对5种药剂在大豆-玉米带状复合种植田的应用进行评估.[结果]5种双酰胺类药剂在3个添加水平下,在大豆、玉米等基质中的平均回收率为77％～114％,相对标准偏差(RSD)为1％～14％.5种药剂在大豆、青豆、玉米和鲜食玉米中的方法定量限(LOQ)均为0.02 mg/kg,在大豆秸秆和玉米秸秆中均为0.05 mg/kg.田间样品检测结果表明:5种药剂在大豆、青豆、玉米和鲜食玉米中的残留均低于方法定量限(0.02mg/kg).在大豆秸秆和玉米秸秆中5种药剂残留量分别在＜0.05～1.5、＜0.05～1.2 mg/kg之间.膳食风险评估结果表明:四氯虫酰胺、四唑虫酰胺、溴虫氟苯双酰胺、溴氰虫酰胺、氯虫苯甲酰胺在大豆、玉米中的长期膳食风险(％ADI)分别为2.00％、0.67％、0.59％、9.33％、0.18％,均小于100％.5种药剂累积摄入风险危害指数HI为12.77％,同样小于100％,表明对普通人群的膳食摄入风险可以接受.[结论]5种双酰胺类药剂在大豆-玉米带状复合种植中应用安全性较高,本试验结果为双酰胺类药剂在大豆-玉米田中的安全使用及登记提供了数据支持.
Abstract
[Aims]The aim of this study was to verify the safety of 5 diamide insecticides in soybean-maize strip compound planting.[Methods]The analysis method of 5 insecticides in soybean and maize substrates was established and the field trial samples were analyzed.Compared with the established maximum residue limit and combined with long-term dietary risk assessment model in China,the application of 5 insecticides in soybean-maize strip compound planting field was evaluated.[Results]At 3 adding levels,the average recoveries and relative standard deviations(RSD)of 5 diamide insecticides in soybean and maize substrates were 77％-114％and 1％-14％,respectively.The limit of quantitation(LOQ)of the five insecticides in soybean,green bean,maize and fresh maize was 0.02 mg/kg,and 0.05 mg/kg in soybean straw and maize straw.The residues of 5 insecticides in soybean straw and maize straw were＜0.05-1.5 and＜0.05-1.2 mg/kg,respectively.The results of dietary assessment showed that the long-term dietary risk(％ADI)of tetrachlorantraniliprole,tetraniliprole,broflanilide,cyantraniliprole and chlorantraniliprole in soybean and maize were 2.00％,0.67％,0.59％,9.33％and 0.18％,respectively,which were all less than 100％.The cumulative intake risk hazard index(HI)of the five insecticides was 12.77％,which was also less than 100％,indicating that the dietary intake risk to the general population was acceptable.[Conclusions]The application safety of 5 diamide insecticides in soybean-maize strip compound planting is relatively high.The results of this study provide data support for the safe use and registration of diamide insecticides in soybean and maize fields.
基金项目
山东省公益性行业(农业)专项(LNZZ2022055)
NETL
NSTL
万方数据