CAJ | 학술논문

目的：建立快速同时测定大枣中50种有机氯及拟除虫菊酯农药残留的气相色谱测定方法。方法样品用加速溶剂萃取法(ASE)萃取,以乙腈(1%乙酸)为提取溶剂,温度100℃,静态萃取5 min,循环3次,提取液用Florisil 硅土柱净化,乙酸乙酯-正己烷(15∶85,V/V)洗脱,采用 HP-5与 DB1701毛细管色谱柱双柱定性,以HP-5毛细管柱定量,GC-ECD检测器进行检测。结果样品3水平添加时的50种有机氯及拟除虫菊酯农药平均回收率为71.4%～110.9%,RSD为1.2%～14.1%,符合农药残留分析的要求。结论本方法仪器简单,使用范围广,重复性及净化效果好,可用于大枣中50种有机氯及拟除虫菊酯类农药残留量检测。
목적：건립쾌속동시측정대조중50충유궤록급의제충국지농약잔류적기상색보측정방법。방법양품용가속용제췌취법(ASE)췌취,이을정(1%을산)위제취용제,온도100℃,정태췌취5 min,순배3차,제취액용Florisil 규토주정화,을산을지-정기완(15∶85,V/V)세탈,채용 HP-5여 DB1701모세관색보주쌍주정성,이HP-5모세관주정량,GC-ECD검측기진행검측。결과양품3수평첨가시적50충유궤록급의제충국지농약평균회수솔위71.4%～110.9%,RSD위1.2%～14.1%,부합농약잔류분석적요구。결론본방법의기간단,사용범위엄,중복성급정화효과호,가용우대조중50충유궤록급의제충국지류농약잔류량검측。
Objective To establish a gas chromatography method for the determination of 50 organochlorine and pyrethroid pesticides residues in Zigyphussp. Methods The organochlorine and pyrethroid pesticides were extracted from Zigyphussp with solvents of acetonitrile (1%acetic acid) by accelerated solvent extraction (ASE) for 5 min at 100℃. Then the extracts were cleaned up by alumina neutral-florisil column and eluted by mixed solvents of ethyl acetate and hexane (15∶85, V/V). The extract was separated by HP-5 and DB1701 capillary dual-column and detected by electron-capture detector. Results The average recoveries and RSD ranged from 71.4% to 110.9%and 1.2% to 14.1% respectively, at three spiked mixed organochlorine and pyrethroid levels. Conclusion The method has good separation and repeatability, and can be used in determination of organochlorine and pyrethroid pesticide residues in Zigyphussp.