论文部分内容阅读
合金中单个希土元素的测定,一般采用分离非希土元素后进行光谱测定。其分离方法大都采用草酸沉淀,也有根据合金的成份采用电解分离法,以及萃取分离法,氢氧化物或氟化铵沉淀法。将所得希土浓缩物用溶液干渣法、载体粉末法光谱测定。以上方法生产流程长,手续繁杂。本实验根据合金以硅为主的特点,采用去硅后,将溶液直接进行高压断续火花转盘电极溶液法进行钇的测定,方法简便快速,同时选用了较好的内标,寻找和克服了影响重现性的有关
Determination of a single rare earth elements in the alloy, the general separation of non-rare earth element spectrometry. Most of its separation method using oxalic acid precipitation, but also according to the composition of the alloy by electrolytic separation, and extraction separation, hydroxide or ammonium fluoride precipitation method. The obtained rare earth concentrate solution dry residue method, carrier powder spectrophotometry. The above method of production of long, complex procedures. The experiment based on the characteristics of silicon-based alloy, the use of silicon, the solution directly to high-voltage intermittent spark turntable electrode solution method for the determination of yttrium, the method is simple and quick, while selecting a better internal standard to find and overcome Affect the reproducibility of the relevant