微波消解-原子荧光光谱法测定阳极铜中痕量砷  

Determination of Trace as in Copper Anode by Using Hydride-generation Atomic Fluorescence Spectrometry with Microwave Digestion

作　　者：马得莉[1] 吕彦玲[1] 王学虎 杨坤 徐艳[1] 魏晶晶 陈瑾霞 

机构地区：[1]白银有色集团股份有限公司,甘肃白银730070 [2]白银矿冶职业技术学院,甘肃白银730070 [3]靖远县第三中学,甘肃白银730070

出　　处：《甘肃冶金》2018年第1期50-53,共4页Gansu Metallurgy

摘　　要：采用微波消解法,将样品用硝酸溶解,原子荧光光谱仪测定阳极铜痕量砷。为了优化测定条件,研究了介质酸度、硫脲-抗坏血酸用量、还原时间以及共存元素的干扰对砷荧光强度的影响。结果表明,该方法快速、简便,有较高的精密度、准确度。A method for determination of trace As in copper anode has been developed by using hydride-generation atomic fluorescence spectrometry with microwave digestion. To optimize the analytical conditions, four important parameters of the fluorescence intensity were examined in detail, such as acidity, thiourea-ascorbic acid content, reduction time, potassium borohydride concentration. The effect of co-existent elements on the determination of As are also investigated. The method shows simple and rapid, higher precision and accuracy.

关 键 词：微波消解 氢化物-原子荧光光谱法 阳极铜 痕量砷 

分 类 号：O657.31[理学—分析化学]