【摘要】 探讨用流动注射-双波长分光光度法测定水样中游离氯的最佳化学条件和最佳仪器参数，方法的精度（RSD）和检出限分别为1．2％（10．88μg／ml，n=11）和0．24μg／ml，用本系统测定水样中的游离氯，回收率在100．0％～110．0％之间。更多还原

【Abstract】 A new FIA technique for the determination of free chlorine is developed,based on the complexing reaction between chlorine and PADA. It is rapid and accurate for determining free chlorine in water,the recoveries range from 100. 0% 110. 0%,the relative standard deviation is 1. 2% for 11 measurements of 10. 88 ig/ml free chlorine standard solution,the detection limit is 0. 24 am/ml, and Beer’s law is obeyed in the ranges of 0-28μg/ml.更多还原