CAJ | 학술논문

精甲霜灵为外消旋物甲霜灵的R型对映体,其在农产品中的残留分析方法中多采用活性等级Ⅴ的酸性氧化铝填充柱并用正己烷与乙醚的混合淋洗液淋洗净化.但由于乙醚有较强刺激性,对实验人员危害较大.经试验,改用正已烷:二氯甲烷(1∶1)的混合淋洗液淋洗,其添加回收率可达95.39%,标准分离值为4.10,变异系数为4.30%,经SAS系统方差分析两者间无差异.精甲霜灵与其荔枝果肉添加样品中的杂质峰最小分离度R为1.668,与相邻组分能完全分离.
정갑상령위외소선물갑상령적R형대영체,기재농산품중적잔류분석방법중다채용활성등급Ⅴ적산성양화려전충주병용정기완여을미적혼합림세액림세정화.단유우을미유교강자격성,대실험인원위해교대.경시험,개용정이완:이록갑완(1∶1)적혼합림세액림세,기첨가회수솔가체95.39%,표준분리치위4.10,변이계수위4.30%,경SAS계통방차분석량자간무차이.정갑상령여기려지과육첨가양품중적잡질봉최소분리도R위1.668,여상린조분능완전분리.
Metalaxyl-M is a (R)-enantiomer of racemate metalaxyl,and is mostly eluted with n-hexane and diethyl ether mixed eluting solution in analysis of residues in agricultural products by applying acidic alumina (active grade V) chromatographic column. In order to avoid the pungency of diethyl ether and ensure safety to the workers on operation,a mixed solution of n-hexane and dichloromethane (1∶1) was used as a substitute of diethyl ether in the present study. The average additive recovery percentage in the control specimen of litchi flesh was 95.39% with standard deviation 4.10 and coefficient of variation 4.30%,which was not significantly different from the results analyzed with the mixed solution of n-hexane and diethyl ether. With the new method,the minimal resolution (R) of impurity peak was 1.668,and the adjacent components could be separated completely.