摘要
提出了以硫脲-抗坏血酸作为还原掩蔽剂,氢化物发生-原子荧光光谱法(HG-AFS)直接测定红土镍矿中砷的方法。考察了测定的最佳条件、共存元素对测定的影响及方法的精密度和回收率。方法适用于红土镍矿中0.005%～0.1%砷的测定。
A method for the determination of arsenic in laterite nickel ores by hydride generation-atomic fluo- rescence spectrometry （HG-AFS） directly with thiourea-ascorbic acid hydrochloride as masking is proposed. The optimum experimental parameters, the effect of coexistent elements on the determination of arsenic, the precision and recovery of the method are investigated. The method can be applied to the determination of 0. 005% - 0. 1% arsenic in laterite nickel ores.
出处
《矿冶》
CAS
2012年第3期97-99,共3页
Mining And Metallurgy
关键词
红土镍矿
氢化物发生-原子荧光光谱法
砷
laterite nickel ores
hydride generation-atomic fluorescence spectrometry
arsenic
