定电位电解法二氧化硫的测定中一氧化碳干扰试验相关探讨  

Discussion onInterference Test of Carbon Monoxide in Determination of Sulfur Dioxide by Fixed-potential Electrolysis Method

作　　者：韩啸 梁印 杨慧 陈雅静 HAN Xiao;LIANG Yin;YANG Hui;CHEN Ya-Jing(Environmental Monitoring Station in Dantu District of Zhenjiang City,Zhenjiang,Jiangsu 212100,China)

机构地区：[1]镇江市丹徒区环境监测站,江苏镇江丹徒212100

出　　处：《污染防治技术》2020年第3期28-32,共5页Pollution Control Technology

摘　　要：根据《固定污染源废气二氧化硫的测定定电位电解法》(HJ 57-2017)中给出的一氧化碳干扰试验步骤和模板进行试验过程中发现通过区间较小,不能满足日常监测需要。笔者通过一氧化碳空白试验发现其对二氧化硫监测结果的干扰呈现一定的线性关系,如果根据干扰系数将仪器设备最终数据加以修正,则增加了干扰试验的通过率,极大的增加了仪器设备的监测使用范围,提高了此标准的实用型和适用性。According to the carbon monoxide interference test steps and templates given in "Determination of sulfur dioxide in waste gas from fixed pollution sources by fixed-potential electrolysis method"(HJ 57-2017), it is found that the passing interval is too small to meet the needs of daily monitoring. Through carbon monoxide blank test,the author finds that the interference to SO2 presents a certain linear relationship. If the final data of instrument and equipment are corrected according to the interference coefficient, the passing rate of interference test is increased, the application scope of instrument and equipment is greatly increased, and the practicability and applicability of this standard are improved.

关 键 词：二氧化硫 一氧化碳 定电位电解法 干扰试验 数据修正 

分 类 号：X511[环境科学与工程—环境工程]