氢化物-原子荧光光谱法测定地质样品中的硒2种前处理方法比较  

Comparison of Two Pretreatment Methods in Determination of Selenium in Geological Samples by HG-AFS

作　　者：马凤英[1] 胡兰[1] 陈波[1] MA Feng-ying;HU Lan;CHEN Bo(Anhui Institute of Geological Experiment,Hefei Anhui 230001)

机构地区：[1]安徽省地质实验研究所,安徽合肥230001

出　　处：《现代农业科技》2019年第1期168-168,171,共2页Modern Agricultural Science and Technology

摘　　要：研究了采用原子荧光光谱法测定地质样品中硒含量的硝酸+高氯酸酸法和碳酸钠+氧化锌半熔法2种前处理方法。结果表明,硝酸+高氯酸酸法操作流程短、准确度较高,但灵敏度较低;碳酸钠+氧化锌半熔法灵敏度较高,但是操作流程长,且在测定含硫量较高的样品时准确度低。Two pretreatmant methods (HNO3+HClO4 method and zinc oxide haft-dissolving method)for determination of selenium in geological samples by HG-AFS were studied.The results showed that the HNO3+HClO4 method had higher accuracy and lower sensitivity,and was simple to operation.The zinc oxide half-dissolving method had higher sensitivity,but had the defect of long time-consuming,and the accuracy was low in determination of the sample with high-content of sulfur.

关 键 词：硒 氢化物-原子荧光光谱法 地质样品 前处理方法 

分 类 号：Q657.31[生物学—生物物理学]