碱熔-氢化物发生原子荧光光谱法测定土壤中的痕量锗
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摘要
本文通过对原子荧光仪器条件、磷酸用量、硼氢化钾及氢氧化钠浓度等试验条件进行优化,采用原子荧光光谱仪测定锗的含量。结果表明,该法的检出限为0.1μg/g,测定的8个国家标准物质与推荐值相符,且重复测定12次的相对误差≤2%。
In this paper, the experimental conditions of atomic fluorescence instrument,phosphoric acid dosage,potassium borohydride and sodium hydroxide concentration were optimized, and the content of germanium was determined by hydride generation-atomic fluorescence spectrometry after alkali fusion.The results showed that the detection limit of the method was 0.1 μg/g, and the value of eight national standard substances determined were in agreement with the recommended value, and the relative error value repeatedly measured 12 times was ≤2%.
In this paper, the experimental conditions of atomic fluorescence instrument,phosphoric acid dosage,potassium borohydride and sodium hydroxide concentration were optimized, and the content of germanium was determined by hydride generation-atomic fluorescence spectrometry after alkali fusion.The results showed that the detection limit of the method was 0.1 μg/g, and the value of eight national standard substances determined were in agreement with the recommended value, and the relative error value repeatedly measured 12 times was ≤2%.
引文
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[2]华磊,施白旎,谭飞,等.原子荧光光谱法测定土壤样品中的锗[J].世界有色金属,2016(16):145-146.
[3]李先,罗善霞,焦圣兵,等.氢化物发生-原子荧光光谱法测定多金属矿中的微量锗[J].黄金科学技术,2014,22(1):78-80.
[4]饶丹华.氢化物发生-原子荧光法测定地化样品中痕量锗[J].四川建材,2012,38(4):181.
[5]王国新.地质样品中痕量锗的原子荧光光谱法[J].黑龙江科技信息,2012(2):66.
[6]李刚,潘淑春,张哲玮.碱性模式氢化发生原子荧光光谱法测定地质样品中痕量锗[J].岩矿测试,2004(4):295-299.