氟离子选择电极测定黄磷尾气中气态氟含量  

Determination of Gaseous Fluorine in Yellow Phosphorus Tail Gas by Ion Selective Electrode

作　　者：蒋明[1] 王重华[1] 田森林[1] 周键[1] 刘瞾 宁平[1] 覃扬颂[1] 蒋蕾[1] 庙荣荣[1] 

机构地区：[1]昆明理工大学环境科学与工程学院,云南昆明650500

出　　处：《分析科学学报》2014年第2期244-246,共3页Journal of Analytical Science

基　　金：NSFC-云南联合基金(No.U1137603);国家自然科学基金(No.21277064);国家863计划重点项目(No.2012AA062504);教育部科学技术研究重点项目(No.210202);昆明理工大学分析测试基金(No.20130352)

摘　　要：采用NaOH溶液吸收黄磷尾气中气态氟,氟离子选择电极测定其氟含量。结果表明,电极电位与5~100.0μg/mL氟离子浓度的对数有良好的线性关系（R=0.99992）。相对标准偏差（RSD）为3.05%,平均回收率为98.70%~99.69%。该方法操作简便、干扰小、准确度高,分析成本低,适用于黄磷尾气中氟含量的测定。Ion selective electrode was used to detect gaseous fluorine in yellow phosphorus tail gas that had been absorbed into test solution. The results showed that the relative standard deviation（RSD） of ion selective electrode method was 3. 05% and the recovery of fluoride was in the range 98. 70%- 99.69%. It gave a linear response of potential with respect to the logarithm of fluoride in the range of 5-100μg/mL. The method is low cost,simple,little interference,sensitive and accurate,and is suitable for detection of gaseous fluorine in yellow phosphorus tail gas.

关 键 词：离子选择电极 黄磷尾气 气态氟 

分 类 号：O657.15[理学—分析化学]