基质固相分散-高效液相色谱法测定浙贝母中除草剂阿特拉津的残留量  

DETERMINATION OF ATRAZINE RESIDUE IN FRITILLARIA BY MATRIX SOLID-PHASE AND HIGH PERFORMANCE LIQUID CHROMATOGRAPHY

作　　者：陈冬梅[1] 毕研迎[1] 张金娥[1] 周子晴[1] 

机构地区：[1]山东师范大学化学化工与材料科学学院,济南250014

出　　处：《山东师范大学学报（自然科学版）》2015年第2期81-83,共3页Journal of Shandong Normal University(Natural Science)

基　　金：山东省高等学校科技计划项目资助（J14LC51）.

摘　　要：本文建立了测定浙贝母中除草剂阿特拉津残留量的分析方法.样品采用基质固相分散（MPSD）前处理技术,中性氧化铝为吸附剂,二氯甲烷-石油醚为淋洗液,高效液相色谱法（HPLC）检测,最低检出限为0.001 μg/g,回收率86.4％-101％,相对标准偏差0.93％-5.2％,本方法简单、快速、准确,可用于浙贝母中除草剂阿特拉津残留量的检测.A method was developed for determination of atrazine residue in fritillaria. Matrix solid - phase dispersion （MPSD） was used for samples preparation, using neutral alumina as sorbent , methylene chloride - petroleum ether for elution. Analysis was performed by high performance liquid chromatography （ HPLC ） with reversed phase C18 column, PDA detector. Under these conditions, atrazine had a good linear relationship （r = 0. 999 5 ） with the detection limit 0.001μg/g, the average recoveries were in the range 86.4% - 101%, with RSD of 0.93 - 5.2%. The results show that the method is simple, rapid, and aectrrate, which can be used for detecting the residual atrazine in Fritillaria.

关 键 词：基质固相分散 高效液相色谱法 浙贝母 阿特拉津 残留量 

分 类 号：O657.7[理学—分析化学]