CO对定电位电解法测定SO2的干扰影响及修正

Interference of CO on Determination of SO2 by Constant Potential Electrolysis Method and Error Correction Models

针对CO对定电位电解法测定SO2产生的干扰影响,课题组通过开展CO和SO2混气干扰实验,分析CO对SO2测定的干扰规律,建立了方程组干扰修正模型和多元方程干扰修正模型,以优化CO对SO2测定干扰的修正。结果表明,混气中SO2和CO存在着不同程度的交叉干扰影响;与目前的研究和生产厂家采用的单方程干扰修正模型相比,方程组干扰修正模型和多元方程干扰修正模型提高了CO干扰修正的准确性。

Due to the interference of CO on determination of SO2 using the constant potential electrolysis method, A CO/SO2 cross interference experiment was performed to examine the regularity of CO interference. An equations model and a multiple regression model had been built to optimize error correction. The results showed that to different degrees the CO/SO2 cross interference existed. In contrast to linear single equation model that previous studies and some manufacturers adopted, the equations model and the multiple regressionmodelcould improve the accuracy of error correction.