氢化物发生-原子荧光光谱法测定土壤和水系沉积物中硒的干扰及其消除研究进展  

Research progress of interference and elimination during the determination of selenium in soil and stream sediment by hydride generation-atomic fluorescence spectrometry

作　　者：寻看雨 钟奕昕 姚慧敏 万谦 刘杰[1] 谭靖 XUN Kanyu;ZHONG Yixin;YAO Huimin;WAN Qian;LIU Jie;TAN Jing(Changsha Natural Resources Comprehensive Survey Center of China Geological Survey,Changsha 410000,China)

机构地区：[1]中国地质调查局长沙自然资源综合调查中心,湖南长沙410000

出　　处：《冶金分析》2024年第11期45-52,共8页Metallurgical Analysis

基　　金：中国地质调查局自然资源综合调查项目(DD20243181)。

摘　　要：硒(Se)是一种两性非金属元素,作为人体所必需的微量元素之一,摄入不足或过量均会危害人体健康。土壤作为人类赖以生存的物质基础,是人们从外界获取Se的最根本来源,因此建立高灵敏度、高准确性的土壤和水系沉积物中Se检测方法具有十分重要的现实意义。氢化物发生-原子荧光光谱法(HG-AFS)具有分析操作简便、灵敏度高、分析速度快、运行成本低等特点,被广泛用于Se元素的测定。但在测试过程中,前处理方式、光源以及共存元素都可能对Se产生干扰,影响测试结果。本文重点阐述了原子荧光光谱测定土壤和水系沉积物中Se元素的干扰来源及产生原因,对Se元素干扰消除的相关研究和应用进展进行了总结探讨,并展望了氢化物发生-原子荧光光谱法测定土壤和水系沉积物中Se未来发展的方向。Selenium(Se)is an amphoteric non-metallic element.As one of the essential trace elements for human body,the insufficient or excessive intake of Se will be harmful to human health.As the material basis for human survival,soil is the most fundamental source for people to obtain Se from the outside world.Therefore,it is of great practical significance to establish a highly sensitive and accurate method for the detection of Se in soil and stream sediments.Due to the characteristics of simple analysis operation,high sensitivity,fast analysis speed and low operating cost,the hydride generation-atomic fluorescence spectrometry(HG-AFS)is widely used for the determination of Se.However,the pretreatment method,light source and coexisting elements may interfere with the determination of Se,affecting the test results.In this paper,the sources and causes of the interference of Se in soil and stream sediments by atomic fluorescence spectrometry were focused on.The research and application progress of Se interference elimination were summarized and discussed.Moreover,the future development direction of hydride generation-atomic fluorescence spectrometry in the determination of Se in soil and stream sediments were prospected.

关 键 词：氢化物发生-原子荧光光谱法(HG-AFS) 硒 干扰 干扰消除 土壤 水系沉积物 

分 类 号：O657.31[理学—分析化学]