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Position: Home > Articles > Comparison of Two Pretreatment Methods in Determination of Selenium in Geological Samples by HG-AFS Modern Agricultural Science and Technology 2019 (1) 168+171

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

作  者:
马凤英;胡兰;陈波
单  位:
安徽省地质实验研究所
关键词:
硒;氢化物-原子荧光光谱法;地质样品;前处理方法
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。
译  名:
Comparison of Two Pretreatment Methods in Determination of Selenium in Geological Samples by HG-AFS
作  者:
MA Feng-ying;HU Lan;CHEN Bo;Anhui Institute of Geological Experiment;
单  位:
MA Feng-ying%HU Lan%CHEN Bo%Anhui Institute of Geological Experiment
关键词:
selenium;;HG-AFS;;geological sample;;pretreatment method
摘  要:
Two pretreatment methods(HNO_3+HClO_4 method and zinc oxide half-dissolving method)for determination of selenium in geological samples by HG-AFS were studied. The results showed that the HNO_3+HClO_4 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.

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