【摘要】 应用手性ChiralpakOJ-H柱对除草剂敌草胺进行分离,对其两个对映体用圆二色光谱进行了表征。在此基础之上,应用荧光检测器建立了测定水体中微量敌草胺对映体的测定方法。该方法外消旋体线性范围为10~100ng.mL-1;外消旋体最低检测限为8ng.mL-1,对映体纯的检测限为4ng.mL-1。该方法对于测定环境水体中敌草胺的手性选择性累积具有现实意义。更多还原

【Abstract】 The enantiomers of napropamide were separated by normal phase HPLC (HPLC: high performance liqaid Chroatography)with Chiralpak OJ-H column and charactered by circular dichroism. On this basis, a method for the chiral separation and micro-determination of napropamide in water was established. The linearity of calibration curve for racemic mixture was 10-100 ng·mL~ -1 and the correlation coefficient was 0.99. When 10 μL was injected, the detection limit of racemic mixture was 8 ng·mL~ -1 , and the detection limits of both enantiomers were 4 ng·mL~ -1 .更多还原