氢化物发生-原子荧光光谱法(HG-AFS)测达里诺尔湖流域底泥样硒  

作　　者：薛舒文 苏丹[1] 张嘉璇 张营[1] 徐苏男[1] 

机构地区：[1]辽宁大学环境学院,沈阳110036

出　　处：《科技创新与应用》2024年第15期83-86,共4页Technology Innovation and Application

基　　金：国家自然科学基金项目面上项目(52170163);沈阳市中青年科技创新人才支持计划(RC220064);沈阳市科技计划项目(22-322-3-14)。

摘　　要：氢化物发生-原子荧光光谱法(HG-AFS)是测定硒(Selenium,Se)的理想方法,能精确测定水样和含水地球化学样品(底泥)中Se的含量。由于达里湖底泥中Se含量相对较低,有机质的还原状态较高,在测量Se含量时往往因为过于复杂且低于仪器检出限而不能被检测到有效值。该文应用HG-AFS测定达里诺尔湖底泥中Se的含量,使用微波消解石墨赶酸作为前处理方法,并使用HG-AFS进行Se含量的测试,采用此法测定底泥中Se元素具有快速、准确、重现性好,被确定为一种快速可靠的对底泥样品Se含量进行测定的方法。Hydride generation-atomic fluorescence spectrometry(HG-AFS)is an ideal method for the determination of selenium(Se).It can accurately determine the content of Se in water samples and water-bearing geochemical samples(sediment).Because the selenium content in the sediment of Dali Lake is relatively low and the reduction state of organic matter is high,the effective value can not be detected because the Se content is too tedious and lower than the detection limit of the instrument.In this paper,HG-AFS was used to determine the content of Se in the sediment of Dalinor Lake,microwave digestion of graphite acid was used as the pretreatment method,and HG-AFS was used to test the content of Se.The determination of Se in sediment by this method is rapid,accurate and reproducible,and has been determined as a rapid and reliable method for the determination of Se in sediment samples.

关 键 词：硒 湖泊底泥 氢化物发生-原子荧光光谱法 微波消解 测定 

分 类 号：X592[环境科学与工程—环境工程]