流动注射浊度法测定水中SO_4^(2-)

Flow Injection-Turbidimetric Determination of Sulphate in Water Samples

本文介绍一种流动注射浊度测定SO_4^(2-)的方法。测定范围为10ppm～180ppm;检出限为2ppm;SO_4^(2-)含量为120ppm时的相对误差小于1.0％;进样频率为90 h^(-1)。对天然水样分析,得到的结果与标准方法一致。

The present paper describes the method of flow injection-turbidimetric determination of sulphate in water. In this method, a more favourable protective medium is used, and therefore the washing of mixed coil tube with EDTA solution is unnecessary, then it was far more simple than other methods.This method was applied to the analysis of various water samples and satisfactory results were obtained.