CAJ | 학술논문

目的：建立一种固相萃取-毛细管柱气相色谱方法,可以同时检测蔬菜中8种菊酯类农药残留。方法蔬菜样品匀浆后,经正己烷/丙酮(V：V=50：50)提取, Florisil固相萃取柱净化, HP-5毛细管气相色谱柱进行分离, GC-ECD进行定性及定量分析。结果8种菊酯类农药残留的色谱图分离效果良好,线性相关系数均大于0.995,方法检出限在0.0025~0.02 mg/kg之间。8种菊酯类农药的添加水平为0.025~2 mg/kg,回收试验表明该方法平均回收率在73.6%~97.0%之间,相对标准偏差小于5%。结论该方法样品处理简单、仪器配置要求较低、净化效果好、易于推广使用,适合蔬菜中多种菊酯类农药残留的检测和安全监控。
목적：건립일충고상췌취-모세관주기상색보방법,가이동시검측소채중8충국지류농약잔류。방법소채양품균장후,경정기완/병동(V：V=50：50)제취, Florisil고상췌취주정화, HP-5모세관기상색보주진행분리, GC-ECD진행정성급정량분석。결과8충국지류농약잔류적색보도분리효과량호,선성상관계수균대우0.995,방법검출한재0.0025~0.02 mg/kg지간。8충국지류농약적첨가수평위0.025~2 mg/kg,회수시험표명해방법평균회수솔재73.6%~97.0%지간,상대표준편차소우5%。결론해방법양품처리간단、의기배치요구교저、정화효과호、역우추엄사용,괄합소채중다충국지류농약잔류적검측화안전감공。
Objective To establish a solid phase extraction-capillary gas chromatography method for the determination of 8 pesticide residues in vegetables.MethodsAfter the homogenized vegetable samples with hexane/acetone (V:V=50:50) and purified with Florisil solid-phase extraction column, the samples were separated by HP-5 gas chromatography column and detected with gas chromatography-electron capture detector (GC-ECD).Results A good separation for 8 pyrethroid pesticides was achieved using the established method with correlation coefficients above 0.995. The detection limit was 0.0025~0.02 mg/kg, the average recoveries of the 8 pyrethroid pesticides were from73.6% to 97.0%in the range of0.025~2 mg/kg. The relative standard deviation was less than 5%. Conclusion This method is simple for sample treatment, low requirements of the instrument configuration, with agood purifying effect and ease popularization, and is suitable for the detection and security monitoring of pesticide residues in vegetables.