Industrial Water Treatment ›› 2026, Vol. 46 ›› Issue (1): 168-177. doi: 10.19965/j.cnki.iwt.2025-0205

• ANALYSIS AND DETERMINATION • Previous Articles     Next Articles

Experimental study on the determination of trace hydrogen peroxide in ultrapure water by gasometric method

Wei ZHENG1(), Dongli WU2, Xin WEN1, Jiahui XUE1, Che LIU1, Yingjie SHEN1()   

  1. 1. China Electronics Engineering Design Institute Co. , Ltd. , Beijing 100142, China
    2. Semiconductor Manufacturing North China (Beijing) Co. , Ltd. , Beijing 100176, China
  • Received:2025-05-27 Online:2026-01-20 Published:2026-02-03
  • Contact: Yingjie SHEN

气相测定超纯水中痕量过氧化氢的试验研究

郑伟1(), 吴东利2, 温鑫1, 薛佳卉1, 刘澈1, 申颖洁1()   

  1. 1. 中国电子工程设计院股份有限公司,北京 100142
    2. 中芯北方集成电路制造(北京)有限公司,北京 100176
  • 通讯作者: 申颖洁
  • 作者简介:

    郑伟(1971— ),教授级高级工程师,E-mail:

  • 基金资助:
    国家重点研发计划项目(2023YFE0114100); 北京市2024年科技服务业专项(KJ-24-71)

Abstract:

In the ultrapure water polishing system, the trace H2O2 produced by vacuum ultraviolet radiation will accelerate the degradation and aging of the downstream process polymer materials. Therefore, online determination of trace H2O2 has become a necessary measure to ensure system operation and control of micro-contamination. A new gasometric method based on hydrogen-oxygen synthesis reaction was developed, which analyzed the concentration of H2O2 in ultrapure water flowing through the reactor by measuring the mass concentration of H2 and O2 at the inlet and outlet of the hydrogenation reactor. Specifically, the palladium-loaded ion exchange resin was selected as the catalyst packed in the reactor, and H2 and O2 were highly selective for heterogeneous catalytic hydrogenation on the palladium metal surface. The results showed that the detection limit of the sample blank experiment was as low as 0.22 μg/L. The control experiment showed that the relative error between the measured value and the reference value was within 5%, with a strong linear correlation (R 2=0.999 8). The proposed determination method could not only provide an effective approach for the quantitative analysis of micro-contamination H2O2 in the ultrapure water of semiconductor advanced processes, but also provide a design method for constructing a new ultrapure water preparation system for deep removal of H2O2 and DO.

Key words: ultrapure water, hydrogen peroxide, micro-contamination, nanoparticles, gasometric method

摘要:

在超纯水精处理系统,由真空紫外线产生的痕量H2O2会加速下游工艺高分子材料的降解和老化,因此在线测定痕量H2O2成为保障系统运行与控制微污染的必要措施。开发了一种基于氢氧合成反应的新型气体计量法,通过测量氢化反应筒入口与出口H2和O2的质量浓度,可以分析流经反应筒的超纯水中H2O2的浓度。选择载Pd的离子交换树脂作为反应筒填充触媒,H2和O2在Pd金属表面高选择性发生多相催化加氢反应。结果表明,样本空白试验的检出限低至0.22 μg/L,对照试验显示测量值与参考值的相对误差在5%之内,具有较强的线性相关性(R 2为0.999 8)。测定方法不仅为半导体高端制程清洗水中微污染物H2O2的定量分析提供了有效手段,还为构建深度脱除H2O2和DO的新型超纯水制备系统提供了设计方法。

关键词: 超纯水, 过氧化氢, 微污染, 纳米粒子, 气体计量法

CLC Number: