摘要
试样用HF HNO3 溶解蒸干后 ,HCl溶出 ;采用氧化镧为释放剂 ,以消除共存离子的干扰 ,于原子吸收分光光度计 ,波长 42 2 7nm处 ,测定钙的吸光度。方法用于高硅合金中钙的测定 ,结果满意。
The sample is dissolved with HF HNO 3 and evaporated The residue is dissolved with HCl,adding La 2O 3 as a releaser to eliminate the influence of the co existing ions The absorbance of calcium is determined at the wave length of 422 7nm by atomic absorption spectrometer The method has been applied to determine calcium in high silicon alloy with satisfactory results
出处
《冶金分析》
CAS
CSCD
北大核心
2002年第3期57-58,共2页
Metallurgical Analysis
