CAJ | 학술논문

建立了同时测定水果中毒死蜱、苯醚甲环唑和哒螨灵残留的气相色谱（ GC/ECD ）分析方法。样品经乙腈提取，氨基固相萃取小柱净化， GC/ECD 检测，外标法定量。结果表明：在0?02～1 mg/L 范围内，3种供试农药的线性相关系数均大于0?99，检出限（ LOD ）为0?006～0?007 mg/kg，定量限（ LOQ）为0?02 mg/kg；在0?02、0?05和0?1 mg/kg 3个添加水平下，平均回收率在78％～108％之间，相对标准偏差（ RSD）为2?9％～16％。该方法适用于水果中毒死蜱、苯醚甲环唑和哒螨灵的检测。
건립료동시측정수과중독사비、분미갑배서화달만령잔류적기상색보（ GC/ECD ）분석방법。양품경을정제취，안기고상췌취소주정화， GC/ECD 검측，외표법정량。결과표명：재0?02～1 mg/L 범위내，3충공시농약적선성상관계수균대우0?99，검출한（ LOD ）위0?006～0?007 mg/kg，정량한（ LOQ）위0?02 mg/kg；재0?02、0?05화0?1 mg/kg 3개첨가수평하，평균회수솔재78％～108％지간，상대표준편차（ RSD）위2?9％～16％。해방법괄용우수과중독사비、분미갑배서화달만령적검측。
An analytical method for simultaneous determination of chlorpyrifos, difenoconazole and pyridaben residues in fruits using gas chromatography with electron capture detector ( GC-ECD) was developed. The samples were extracted with acetonitrile, and further clean-up on NH2-SPE. It showed that good linearity was obtained from range 0?02 to 1?0 mg/L with correlation coefficients above 0?99 . The limits of detection were 0?006 -0?007 mg/kg and the limits of quantification were 0?02 mg/kg. Fortified recoveries at 0?02 , 0?05 and 0?1 mg/kg were from range 78% to 108% with relative standard deviations ( RSDs ) from range 2?9% to 16%, respectively. The results showed the method was suitable for the determination of chlorpyrifos, difenoconazole and pyridaben in fruits.