铈量法分析H_(2)O_(2)的含量

Analysis on the content of H_(2)O_(2) by cerium method

基于钛硅分子筛—过氧化氢(H_(2)O_(2))体系和铈量法开展了H_(2)O_(2)滴定分析的研究,对比了手动滴定和自动电位滴定的精确度,考察了溶液pH、H_(2)O_(2)加入量、H_(2)O_(2)放置时长以及样品处理方式对钛硅分子筛-H_(2)O_(2)体系中H_(2)O_(2)含量分析的影响。实验结果表明,自动电位滴定法测定H_(2)O_(2)精确度较高,且重复性较好,同时为钛硅分子筛-H_(2)O_(2)体系中H_(2)O_(2)的含量提供了1种简单、快速、低成本的分析方法。

It carried out a study on H_(2)O_(2)titration analysis based on titania silica-hydrogen peroxide(H_(2)O_(2)) system and cerium method, compared the accuracy of manual titration and automatic potentiometric titration, and investigated the effects of solution pH, H_(2)O_(2)addition amount, H_(2)O_(2)storage time and sample treatment on the analysis of H_(2)O_(2)content in titania silica-H_(2)O_(2)system.The experimental results showed that the automatic potentiometric titration method had high accuracy and good repeatability for the determination of H_(2)O_(2). At the same time, it provided a simple, rapid and low-cost method for the analysis of H_(2)O_(2)content in the system of titanium-silicon molecular sieve H_(2)O_(2).