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当前位置: 首页 > 文章 > 甲维盐在水稻环境中的残留分析方法 农药 2011,50 (5) 53-55
Position: Home > Articles > Residue Analysis of Emamectin Benzoate in Rice Field Agrochemicals 2011,50 (5) 53-55

甲维盐在水稻环境中的残留分析方法

作  者：
柳王荣;杨仁斌;黄尧;傅强
单  位：
湖南农业大学农业环保研究所
关键词：
甲维盐;稻米;HPLC-FLD;残留分析方法
摘  要：
[目的]甲维盐在稻米和稻田环境中的残留不可忽视,建立一种灵敏、准确、简便的分析方法很有必要。[方法]探索了应用衍生化反应测定稻米和稻田环境样品中甲维盐残留量的HPLC-FLD分析方法。水样用二氯甲烷萃取,土样、植株、稻米和稻壳用丙酮-水(体积比7∶3)提取,经液液萃取净化,衍生化后采用HPLC-FLD测定。[结果]甲维盐的最小检出量为1×10-11 g,水样、土样、植株、稻米和稻壳中甲维盐的添加回收率为70.61%~100.71%,变异系数为2.99%~4.23%,最低检测质量浓度(或质量分数)分别为0.000 1 mg/L,0.000 5、0.000 5、0.000 3、0.000 5 mg/kg。[结论]均符合农药残留分析方法的技术要求。
译  名：
Residue Analysis of Emamectin Benzoate in Rice Field
作  者：
LIU Wang-rong,YANG Ren-bin,HUANG Yao,FU Qiang(Institute of Agro-Environmental Protection,Hunan Agricultural University,Changsha 410128,China)
关键词：
emamectin benzoate;rice;HPLC-FLD;residue analysis
摘  要：
Emamectin benzoate residues in rice and rice field can not be ignored,developing a sensitive,accurate and simple method is necessary.[Methods]A method of derivative determination of the residue of emamectinbenzoate in rice and rice field by HPLC-FLD was explored.Emamectin benzoate in the water was extracted withmethylene chloride,soil,plants,rice and rice hull were extracted with acetone/water(7∶3,by vol),the extracts werecleaned up by liquid-liquid extraction,and detected by HPLC-FLD after derivatization.[Results]The results showedthat the minimum detectable amount of emamectin benzoate was 1×10-11g,and the average recoveries in water,soil,plants,rice and rice hull were 70.61-100.71%,and the coefficient of variation were 2.99-4.23%.The minimumdetectable concentrations in water,soil,plants,rice and rice hull were 0.000 1 mg/L,0.000 5,0.000 5,0.000 3 and0.000 5 mg/kg respectively.[Conclusions]All met the technical requirements of pesticide residue analysis.

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