sulfurous method

Treatment on mineral waste water of sulfurous iron ore at Qi Bao Shan by sulfurized method

七宝山硫铁矿矿坑废水的硫化法处理试验

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Conclusion Both sulfurous acid, magenta and acetylacetone spectrophotometric methods were suitable for the determination of formaldehyde in rongalite in the laboratory of basic units, and acetylacetone spectrophotometric method was better because less environmental factors interfered with the detection results.

结论品红亚硫酸法和乙酰丙酮法均适于基层实验室检测吊白块的甲醛含量，乙酰丙酮法受外界环境的影响小，更为适用。

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The recovery rates and RSDs of sulfurous acid, magenta spectrophotometric method were 98.2%-108% and 2.6%-5.8% respectively.

品红亚硫酸法的回收率为98.2%～108%，相对标准偏差（RSD）为2.6%～5.8%。

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