环境因子对精喹禾灵及其代谢物在土壤中降解研究  

Study on Environmental Factors of Degradation of Quizalofop-p-ethyl and its Metabolite in Soil

作　　者：屈江玲 曹冬梅[1,2,3] 汤华成 娄雨豪[1] Qu Jiangling;Cao Dongmei;Tang Huacheng;Lou Yuhao(College of Food Sciences,Heilongjiang Bayi Agricultural University,Daqing 163319;Key Laboratory of Agro-Products Processing and Quality Safety of Heilongjiang Province;National Coarse Cereals Engineering Research Center)

机构地区：[1]黑龙江八一农垦大学食品学院,大庆163319 [2]黑龙江省农产品加工与质量安全重点实验室 [3]国家杂粮工程技术研究中心

出　　处：《黑龙江八一农垦大学学报》2020年第6期13-19,共7页journal of heilongjiang bayi agricultural university

基　　金：黑龙江省优势特色学科资助项目(黑教联〔2018〕4号);黑龙江八一农垦大学“三横三纵”科研团队支持计划-杂粮营养与质量安全创新团队(TDJH201806);国家重点研发计划(杂粮食品精细化加工关键技术合作研究及应用示范:2018YFE0206300)。

摘　　要：为研究精喹禾灵及其代谢物精喹禾灵酸在土壤中降解的影响因素,建立了HPLC-DAD分析法。可同时检测土壤中两种化合物的残留量。用单因素分析法,分别研究了温度、湿度、有机质、微生物条件对黑龙江土壤中精喹禾灵及其代谢物的影响。结果表明:精喹禾灵中间代谢物为精喹禾灵酸,微生物对精喹禾灵及其代谢物降解影响最大。在25℃,35%的含水量下,有机质含量高的土壤,精喹禾灵及其代谢物降解最快。In order to study the factors influencing the degradation of quizalofop-p-ethyl and its metabolite quizalofop-p-acid in soil,HPLC-DAD analysis method was established.The residue of two compounds in soil can be detected simultaneously.The effects of temperature,humidity,organic matter and microorganism conditions on quizalofop-p-ethyl and its metabolites in the soil of Heilongjiang province were studied by single factor analysis.The results showed that the intermediate metabolite of quizalofop-p-ethyl iwas quizalofop-p-acid.The microorganisms had the greatest influence on the degradation of jingquirin and its metabolites.At 25℃and 35%water content,the degradation rate of quizalofop-p-ethyl and its metabolite was the fastest in soil with abundant organic matter.

关 键 词：精喹禾灵 精喹禾灵酸 HPLC-DAD 降解 

分 类 号：TS201.6[轻工技术与工程—食品科学]