CAJ | 학술논문

建立GC—NPD测定苯醚甲环唑和嘧菌酯在香蕉和土壤中残留的分析方法。样品经乙腈提取，弗罗里硅土小柱净化，洗脱液为正己烷：丙酮=9：l。结果表明：该方法可以同时检测出香蕉和土壤中两种物质的含量，两种物质在0．05～2μg／mL的范围内有良好的线性关系．苯醚甲环唑和嘧菌酯的线性相关系数分别为0．9973和0．9994。在香蕉果、肉和土中的最低检测浓度皆为0．05mg／kg，最小检出量为0．05ng，在不同样品中的平均回收率分别为85．4％～107．4％和93．4％～106．3％，相对标准偏差分别为1．67％～7．80％和1．40％～5．84％。
건립GC—NPD측정분미갑배서화밀균지재향초화토양중잔류적분석방법。양품경을정제취，불라리규토소주정화，세탈액위정기완：병동=9：l。결과표명：해방법가이동시검측출향초화토양중량충물질적함량，량충물질재0．05～2μg／mL적범위내유량호적선성관계．분미갑배서화밀균지적선성상관계수분별위0．9973화0．9994。재향초과、육화토중적최저검측농도개위0．05mg／kg，최소검출량위0．05ng，재불동양품중적평균회수솔분별위85．4％～107．4％화93．4％～106．3％，상대표준편차분별위1．67％～7．80％화1．40％～5．84％。
A GC-NPD method for determining residue of difenoconazole and azoxystrobin in banana and soil was established. Samples were extracted with acetonitrile and purified with Florisil SPE column, eluting agent was hexane : acetone = 9 : 1. The result shows this method could determine the residue of difenoconazole and azoxystrobin in banana and soil in one chromatogram. The calibration curves of the two pesticides have a good linear correlation in the range of 0.05-2 μg/mL, the linear relative coefficients of difenoconazole and azoxystrobin were 0.9973 and 0.9994. The limits of quantification in pulp, whole banana and soil all were 0.05 mg/kg. The limits of detection were 0.05 ng. The recoveries of difenoconazole and azoxystrobin in different samples were in range of 85.4%~107.4% and 93.4%~ 106.3% with the relative deviation of 1.67%~7.80% and 1.40%~5.84%.