氢化物发生-原子荧光光谱法测定环境水体中痕量锑  

Determination of Trace Antimony in Environmental Water by Hydride Generation-Atomic Fluorescence Spectrometry

作　　者：刘冰冰[1] 刘佳 张辰凌[1] 贾娜[1] 张永涛[1] LIU Bingbing;LIU Jia;ZHANG Chenling;JIA Na;ZHANG Yongtao(Key Laboratory of Groundwater Science and Engineering,Ministry of Natural Resources,Institute of Hydrogeology and Environmental Gelogy,Chinese Academy of Geological Science,Zhengding 050803,China)

机构地区：[1]中国地质科学院水文地质环境地质研究所,自然资源部地下水科学与工程重点实验室,河北正定050803

出　　处：《净水技术》2021年第8期40-43,96,共5页Water Purification Technology

基　　金：中国地质科学院水文地质环境地质研究所基本科研业务费项目(SK202004)。

摘　　要：建立了采用氢化物发生-原子荧光光谱法测定环境水体中痕量锑的方法。通过优化仪器工作条件和所用试剂的浓度,确定仪器的光电倍增管负高压为310 V,灯电流为75 mA,硼氢化钾溶液和载流盐酸浓度分别为20 g/L和5%。方法的检出限和定量限分别为0.02μg/L和0.06μg/L,线性范围为0.06~5.0μg/L。分别连续测定3个不同浓度锑标准溶液12次,其相对标准偏差在1.33%~2.45%。选取矿化度不同的两个水样进行加标回收试验,其加标回收率为95.12%~103.5%,相对标准偏差(n=12)为0.97%~3.12%。A method for determination of trace antimony in environmental water by hydride generation-atomic fluorescence spectroscopy was established.By optimizing the working conditions of the instrument and reagents concentration,it was determined that the negative pressure of the photomultiplier tube was 310 V,the lamp current was 75 mA,and the concentration of potassium borohydride solution and hydrochloric acid were 20 g/L and 5%,respectively.Detection limit and quantification limit of the method were 0.02μg/L and 0.06μg/L.Linear range was 0.06~5.0μg/L.Three antimony standard solutions with different concentrations were measured 12 times respectively,and their relative standard deviation was between 1.33%~2.45%.Two water samples with different salinity were selected for the spiked recovery experiment.Spiked recovery rate was 95.12%~103.5%,and relative standard deviation(n=12)was 0.97%~3.12%.

关 键 词：氢化物发生-原子荧光光谱法 水 锑 

分 类 号：X832[环境科学与工程—环境工程]