ICP-AES法同时测定废水中的铟、铝研究

摘要

钢和铅都是低毒的重金属元素,化学性质相似,都能对环境、人体健康造成不同程度的危害.采用电感耦合等离子体-原子发射光谱法(ICP-AES),研究了同时测定冶炼、矿山、采选、化工等行业排放工业废水中铟和铝的方法.探讨了测定过程中共存离子对铟和铝的干扰问题.实验表明在最佳仪器条件和测定条件下,该方法具有较低的检出限、较高的精密度和准确度,操作简便、快捷.%This study presents a method for simultaneous determination of indium and aluminum in wastewater from the smel-ting, mining, selecting indium, chemical and other industries by inductively coupled plasma-atomic emission spectrometry( ICP-AES) . The elimination of the interference from coexistent elements on the determination of the two elements was discussed. Ex-periments show that under the best instrument conditions and determination conditions, this method has low detection limit, higher precision and accuracy. The method is simple and quick to operate.