摘要
研究了Na2EDTA标准滴定溶液测定锡阳极泥中铋的方法。探讨了锡阳极泥的溶样方式、滴定溶液酸度、滴定溶液温度、共存元素干扰、加标回收、方法的准确度与精密度。方法适用于锡阳极泥中5％～20％铋量的测定，尤其是铟量在0．1%及以上时，方法相对标准偏差（RSD）为0．55oA～1．4％，加标回收率为99．81％～101．3％。具有操作步骤简单、适用性广、分析结果重现性好与准确度高等优点。
A method for the determination of bismuth in tin anode slime using Na2EDTA standard titration solution was studied. Dissolution of tin anode slime, titration acidity, titration temperature, interference of coexisting elements, accuracy and precision of the method were discussed. The method is suitable for the determination of bismuth in tin anode slime with the bismuth concentration of 5%--20% and especially when indium content is more than 0. 1%. This method has the advantages of simple operation procedure, wide applicability, good reproducibility and high precision.
出处
《中国无机分析化学》
CAS
2016年第3期81-86,共6页
Chinese Journal of Inorganic Analytical Chemistry
关键词
锡阳极泥
铋
铟
Na2EDTA滴定法
tin anode slime
bismuth
indium
Na2 EDTA titrimetric method
