离子选择性电极法测定锌冶炼浸出新液中的氟  

Determination of Fluoride in New Liquid by Zinc Smelting by Ion Selective Electrode Method

作　　者：容喜意 

机构地区：[1]东江环保深圳市保华科技有限公司,广东深圳518000

出　　处：《广州化工》2017年第10期113-115,共3页GuangZhou Chemical Industry

摘　　要：通过试验对比,研究了锌湿法冶炼浸出新液中氟离子的测定方法。在比对试验酸度条件下测定氟元素的分析结果后,选择在pH值为5~6的溶液中用离子选择性电极法测定氟。方法就柠檬酸三纳的用量影响和铝、锌杂质干扰及消除、试剂用量及影响等条件进行了试验。以氟离子的质量浓度值为横坐标,电位值为纵坐标,绘制工作曲线。方法试验结果的相对标准偏差在2.95%~4.15%之间,样品加标回收率加标回收率在96.65%~100.11%之间。The method of determination of fluoride ion in new liquid leaching by zinc hydrometallurgy was studied byexperiment. After the analysis of the fluorine element was measured under the comparative acidity condition, the fluorinewas determined by ion selective electrode method in a solution having a pH of 5 - 6. The effects of the amount of citricacid and the interference and the elimination of aluminum and zinc impurities, the dosage and influence of the reagentwere tested. The fluoride ion concentration value was used for the abscissa and the potential value was used vertical axis todraw the work curve. The relative standard deviations of the test results were between 2. 95% and 4. 15%. The recoveriesof spiked samples were between 96.65% and 100. 11%.

关 键 词：浸出液 氟 离子选择性电极 

分 类 号：O652.1[理学—分析化学]