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近年来,原子吸收光谱分析法发展非常迅速,日益为分析化学工作者所重视。此方法的特点是分析速度较快,灵敏度较高,对于复杂组份的分析对象也有较好的适应性,因而越来越多的应用此方法于矿石分析。关于原子吸收光谱法测定铍,已确定了一些条件。本简报使用氧化亚氮-乙炔火焰进行了在矿石中铍的原子吸收测定,矿石经碱熔,浸出后,不需分离即可进行直接测定,可测定范围为0.0x—x.0%BeO。实验部分 (一)仪器及火焰条件我们使用黑尔格-瓦茨H-700分光光度计的AA-2原子吸收附件和经过改装雾化器的组装原子吸收光谱仪。光源为自
In recent years, atomic absorption spectrometry has developed very rapidly and is increasingly valued by analytical chemists. This method is characterized by faster analysis, higher sensitivity, for complex components of the analysis of the object also has good adaptability, and thus more and more applications of this method in ore analysis. For the determination of beryllium by atomic absorption spectroscopy, a number of conditions have been established. This briefing uses the nitrous oxide-acetylene flame to perform the atomic absorption spectrometry of beryllium in ores. After the ore has been melted by alkali and leached, it can be directly measured without isolation. The determination range is 0.0x-x.0% BeO. EXPERIMENTAL SECTION (I) Apparatus and Flame Conditions We used the AA-2 Atomic Absorption Accessories of the Hercules-Watts H-700 Spectrophotometer and the assembled atomic absorption spectrometer with modified nebulizer. Light source from