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- W201489250 abstract "目的 建立工作场所空气中4种无机酸(HF、HCl、HNO3、H2SO4)的测定方法.方法 样品采用硅胶管采样,溶剂解吸,离子色谱法测定.结果 该方法F-、Cl-在0.5～4.0 μg/ml、NO3-、SO42-在1.0～5.0μg/ml范围内呈线性关系;样品在硅胶管中可保存7 d,方法重现性好;不同浓度的F-、Cl-、NO3-、SO42-相对标准偏差为0.5%～4.0%,检出限分别为0.05、0.08、0.10和0.10 μg/ml,平均解吸效率分别为95.9%、96.9%、96.5%、95.7%,采样效率均值分别为98.2%、96.7%、99.5%和96.0%;200 mg硅胶对HF、HCl、HNO3的穿透容量分别为0.18、1.15、0.61 mg,对H2SO4的穿透容量至少为0.57 mg.4种无机酸同时存在时,可以在该方法条件下同时采样和测定.结论 该方法各指标均达到了《工作场所空气中有毒物质检测方法研究规范》的要求,适用于工作场所空气中无机酸单独或同时存在时的现场检测。" @default.
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- W201489250 date "2006-10-01" @default.
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- W201489250 title "Ion chromatography for determination of four types of ions in air of working places" @default.
- W201489250 doi "https://doi.org/10.3760/cma.j.issn.1001-9391.2006.10.014" @default.
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