摘要
针对高浓度氯离子且低浓度化学需氧量(COD)的水样检测,实验使用快速消解法,对比国标中的三种屏蔽氯离子的实际效果,方法一是对水样进行预处理,添加硫酸汞屏蔽氯离子;方法二是绘制氯离子矫正曲线,对检测的COD结果进行矫正;方法三是配制硫酸汞溶液进行屏蔽。
For the detection of water samples of high-concentration chloride ions and low-concentration chemical oxygen demands(CODs),fast digestion spectrophotometric method was used to experimentally compare the actual effects of three approaches for shielding chloride ions in the Chinese national standard.Method 1 was to pretreat the water samples and add mercury sulfate to shield the chloride ions;Method 2 was to plot the calibration curve of chloride ions to correct the detected COD results;Method 3 was to prepare mercury sulfate solution for shielding.
作者
韩彬
王军强
田芳芳
巴雨
陈冬梅
Han Bin;Wang Junqiang;Tian Fangfang;Ba Yu;Chen Dongmei(Beijing Zhongke Shengtai Environmental Technology Co.,Ltd.;Ansteel Engineering Technology Corporation Limited,Anshan,Liaoning 114000)
出处
《冶金设备管理与维修》
2023年第1期40-42,共3页
Metallurgical Equipment Management and Maintenance
