第 43 卷第 3 期Vol. 43 No. 3
2013 年 6 月Jun 2013

所属栏目:分析与测试

吡唑醚菌酯悬浮剂的气相色谱法分析
姚 瑛1,2,3,陈九星2,3*,李 涛2,3,廖晓兰1,虞孝云4 (1. 湖南农业大学 生物安全技术学院,湖南 长沙 410128;2. 湖南化工研究院 国家农药创制工程技术研究中心,湖南 长沙 410014;3. 农用化学品湖南省重点实验室,湖南 长沙 410014;4. 湖南海利农药化工有限公司,湖南 常德 415001)
摘 要:建立了测定吡唑醚菌酯悬浮剂的气相色谱检测方法。采用乙腈盐析萃取有效成分、以邻苯二甲酸二正辛酯为内标物,RTX-1毛细柱为分离柱,FID检测器进行检测的气相色谱法对吡唑醚菌酯悬浮剂有效成分进行检测。结果表明:其线性范围宽,线性相关系数R为0.999 6,方法标准偏差为0.16~0.20,变异系数RSD为0.48%~1.01%;其添加回收率在98.28%~101.34% 之间,测定结果与反高效液相色谱法测定结果吻合,其相对偏差在1.5%之内。
关键词:吡唑醚菌酯悬浮剂;气相色谱;分析
中图分类号:O657.7+1  文献标识码:B  文章编号:1009-9212(2013)03-0065-03
Determination of Pyraclostrobin SC by Gas Chromatography
YAO Ying1,2,3,CHEN Jiu-xing2,3*,LI Tao2,3,LIAO Xiao-lan1,YU Xiao-yun4 (1. College of Biosafety Science and Technology ,Hunan Agricultural University,Changsha 410128,China;2. National Engineering Research Center for Agrochemicals,Hunan Research Institute of Chemical Industry,Changsha 410014,China;3. Hunan Province Key Laboratory for Agrochemicals,Changsha 410014,China;4. Hunan Haili Changde Pesticides & Chemicals Co.,Ltd.,Changde 415001,China)
Abstract:A GC method was established for the determination of Pyraclostrobin SC. The effective component was extracted with acetonitrile and analyzed by GC with RTX-1 capillary column and FID detector,and using di-n-octyl phthalate as the internal standard. The results showed that the linear correlation coefficient R was 0.9996,the standard deviation was 0.16~0.20,and RSD was 0.48%~1.01%. The recovery rate was in the range of from 98.28% to 101.34%. The relative deviation between the results from GC and from HPLC is less than 1.5%.
Key words:Pyraclostrobin;GC;analysis
作者简介:姚 瑛(1988-),女,湖南邵阳人,硕士研究生,研究方向:农药制剂。
联 系 人:陈九星,研究员,研究方向:农药残留及有机污染物分析。(E-mail:cjx1964_1@163.com)
收稿日期:2013-04-20