杀草胺在稻谷和糙米中的残留检测方法  

Determination of Ethaprochlor Residues in Unhulled and Hulled Rices

作　　者：李策[1,2] 蔡磊明[1,2] 赵华[2] 汤涛[2] 吴珉[2] 

机构地区：[1]新疆农业大学草业与环境科学学院,乌鲁木齐830052 [2]省部共建农产品质量安全国家重点实验室培育基地农业部农药残留检测重点实验室浙江省农业科学院农产品质量标准研究所,杭州310021

出　　处：《农药》2016年第2期115-117,共3页Agrochemicals

摘　　要：[目的]建立杀草胺在稻谷和糙米中的高效液相色谱残留检测方法。[方法]样品经石油醚提取,弗罗里硅土玻璃层析柱净化;Agilent-1260高效液相色谱仪配备紫外检测器检测。[结果]该方法在稻谷和糙米中的添加质量分数均为0.0715、0.715、2.86 mg/kg时,回收率为80.00%~102.51%,RSD为0.57%~5.55%。在稻谷和糙米中的最低检测质量分数为0.0715 mg/kg,最小检出量为7.0×10-11g。[结论]所建立检测方法的灵敏度、准确度和精密度均满足杀草胺在糙米和稻谷中残留分析要求。[Aims] The residues of ethaprochlor in unhulled and hulled rices were determined by high performance liquid chromatography（HPLC） with ultraviolet detector. [Methods] The samples were extracted with petroleum ether,and cleaned up by glass chromatography column filled with florisil, then analyzed by Agilent-1260 high performance liquid chromatography with ultraviolet detector. [Results] The results indicated that when the addition levels were0.0715, 0.715 and 2.86 mg/kg, the recoveries of ethaprochlor in unhulled and hulled rices were ranged from 80.0 to102.5%, and the relative standard deviations were 0.57-5.55%. The limits of quantification for ethaprochlor in unhulled and hulled rices were 0.0715 mg/kg, and the limit of detection was 7.0×10-11 g. [Conclusions] The proposed method is simple, rapid and reliable, and meet the demand for analysis of ethaprochlor residues in unhulled and hulled rices.

关 键 词：杀草胺 高效液相色谱 稻谷 糙米 

分 类 号：TQ450.2[化学工程—农药化工]