微波消解-原子荧光分光光度法测定工业硫磺中的汞含量  

Deter mination of mercury content in industrial sulfur by microwave digestion atomic fluorescence spectrophotometry

作　　者：裴艳红 吕正忠 常素萍 王礼云 朱静 Pei Yanhong;Lv Zhengzhong;Chang Suping;Wang Liyun;Zhu Jing(Ningxia Coal-to-oil Che Mical Quality Inspection and Measure ment Center of National Energy Group,Yinchuan 750411)

机构地区：[1]国家能源集团宁夏煤业煤制油化工质检计量中心,宁夏银川750411

出　　处：《石化技术》2024年第11期43-45,共3页Petrochemical Industry Technology

摘　　要：通过对工业硫磺中汞含量测定时载流液种类、硼氢化钾浓度、消解条件的选择优化,建立微波消解-原子荧光分光光度法测定工业硫磺中的Hg含量的方法。该方法测定浓度范围0~5μg/L的含汞样品线性相关系数大于0.999,汞的RSD小于4.5%,加标回收率在100.00%~113.50%,具有快速、简便、准确的特点,可以为硫磺的下游制造业业筛选原料提供技术参考。This article establishes a method for deter mining the mercury content in industrial sulfur using microwave digestion atomic fluorescence spectrophotometry by opti mizing the selection of carrier fluid type,potassiu m borohydride concentration,and digestion conditions.This method has a linear correlation coefficient greater than 0.999 for mercury containing sa mples with a concentration range of 0~5μg/L,a mercury RSD of less than 4.5%,and a spiked recovery rate of 100.00%~113.50%.It is fast,si mple,and accurate,and can provide technical reference for screening raw materials in downstrea m sulfur manufacturing industries.

关 键 词：工业硫磺 汞 微波消解 原子荧光分光光度法 

分 类 号：O657.31[理学—分析化学] TQ125.11[理学—化学]