摘要
酸溶硼酸,再利用硼酸在水中的溶解度的变化先热容硼酸再冷结晶析出硼酸,杂质元素铁离子和铅离子留在溶液中,并得到富集,用电感耦合等离子体发射光谱法测定溶液中铁和铅。在标准系列中加入定量基体并做了加标回收试验,回收率在97%~103%之间,分析误差在化学分析允许的范围内,检出限和精密度都非常好。该方法快速准确,简便易行,能代替原有的比色等化学分析方法。
Acid-soluble borate, re-use of boric acid in the water solubility of boric acid, then cold crystallization of boric acid, impurity elements iron ions and lead ions remain in the solution, and obtained enrichment, inductively coupled plasma atomic emission spectrometry determination of iron and lead in solution. Adding the quantitative matrix to the standard series and doing the spike recovery test, the recovery rate is between 97% ~103%, the analysis error is within the allowable range of chemical analysis, the detection limit and the precision are very good. The method is fast, accurate and simple, and can replace the original colorimetric and other chemical analysis methods.
引文
[1]天津化工研究院,等.无机盐工业手册(第二版下册)[M].化学工业出版社,1996.1176-1182.
[2] GB/T12684-2006.工业硼化物分析方法[S].