CAJ | 학술논문

建立了固相萃取-气相色谱串联质谱法检测鳗鱼中丁烯氟虫腈、三氯杀蟎醇等20种农药残留的分析方法。试样经乙腈提取后加入适量的去离子水和正己烷除去水溶性杂质和脂溶性杂质，再经填有中性氧化铝、C18和PSA混合填料的自组装固相萃取柱净化后进行GC-MS检测分析。采用选择离子扫描方式，用内标法进行定量。本方法简便、快速，方法的检出限(S/N=3)为0.001～0.009 mg/kg，在加标水平为0.01 mg/kg时，平均回收率为70.7～120%,相对标准偏差(RSD)为2.9～7.2%；在加标水平为0.02 mg/kg时，平均回收率为70.3～120%,相对标准偏差(RSD)为2.9～6.2%。
건립료고상췌취-기상색보천련질보법검측만어중정희불충정、삼록살만순등20충농약잔류적분석방법。시양경을정제취후가입괄량적거리자수화정기완제거수용성잡질화지용성잡질，재경전유중성양화려、C18화PSA혼합전료적자조장고상췌취주정화후진행GC-MS검측분석。채용선택리자소묘방식，용내표법진행정량。본방법간편、쾌속，방법적검출한(S/N=3)위0.001～0.009 mg/kg，재가표수평위0.01 mg/kg시，평균회수솔위70.7～120%,상대표준편차(RSD)위2.9～7.2%；재가표수평위0.02 mg/kg시，평균회수솔위70.3～120%,상대표준편차(RSD)위2.9～6.2%。
A method for the determination of multi pesticide multiresiduals such as flufiprole, dicofol in eels by gas chromatography with solid-phase extraction was proposed. The compounds were extracted from homogenized tissue with acetonitrile. Water-soluble and fat-soluble impurities in acetonitrile was removed by a moderate amount of hexane and deionized water. Acetonitrile extract purified by self-assembly solid-phase extraction column with mixed power of Alumina-N, C18 and PSA was ready for GC-MS analysis. The determination was performed in selected ion monitoring(SIM) mode with inner standard method for quantitative analysis. The detection limits(S/N=3)were in the range of 0.001~0.009 mg/kg.Tests for recovery were made by addition of mixed standards of 0.01 mg/kg,and the results were 70.7~120%,and the relative standard deviations were 2.9~7.2%. Tests for recovery were made by addition of mixed standards of 0.02 mg/kg,and the results were 70.3~120%,and the relative standard deviations were 2.9~6.2%.