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目的:了解空气中过氧化氢残留降解的变化情况。方法:以四氯化钛溶液吸收空气中的过氧化氢残留,用紫外分光光度计比色检测分析。结果:经喷雾进入空气中的过氧化氢迅速降解,高浓度的过氧化氢降解至短时间接触容许浓度所需时间较长,如100 mg/m3过氧化氢需135 ,50 mg/m3过氧化氢需55 ,25 mg/m3过氧化氢在空气中残留量小,35 后仪器很难检出。结论:为了减轻并消除空气中过氧化氢对人体健康的危害,应在满足工作需要的条件下,尽量采取有效措施降低过氧化氢在空气中的浓度。
Objective: To understand the changes of residual hydrogen peroxide in air. Methods: Titanium tetrachloride solution was used to absorb the hydrogen peroxide in the air and the colorimetric analysis was carried out by ultraviolet spectrophotometer. Results: Hydrogen peroxide sprayed into the air degraded rapidly and the time required for high concentration hydrogen peroxide to degrade to short-term exposure to the tolerable concentration was longer, eg 135 mg / m3 for 100 mg / m3 hydrogen peroxide Hydrogen required 55, 25 mg / m3 Hydrogen peroxide residues in the air is small, 35 after the instrument is difficult to detect. Conclusion: In order to reduce and eliminate the harmful effects of hydrogen peroxide in air on human health, it is necessary to take effective measures to reduce the concentration of hydrogen peroxide in the air under conditions that meet the needs of work.