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鉍的分析方法很多,仅我矿而言,也曾使用过草酸镕量法、重量法等。但由于分析手续繁多而报出结果无疑是不能滿足生产,特別是选矿厂的需要。因此,我们于1957年就开始使用EDTA滴定法代替手續繁多的草酸法。經使用几年的实践証明和送外部驗証說明:方法快速、稳定,同样能收到草酸法的結果。从而降低成本,提高工效3—4倍。现将我們目前使用方法簡单介绍如下供参考。
Bismuth many analytical methods, only mine, terms of law have also used oxalic acid, gravimetric method. However, due to the large number of analytical procedures reported to the result is undoubtedly can not meet the production, especially the needs of the dressing plant. Therefore, we started using EDTA titration in 1957 to replace the oxalate method. After several years of proven and sent external verification instructions: The method is fast, stable, also receive the results of the oxalate method. Thus reducing costs and improve work efficiency 3-4 times. Now we use the method is briefly introduced below for reference.