摘要
本方法采用ICP-AES法进行铝合金中Sc元素的测定,系统研究了四十余种元素对Sc三条分析谱线的光谱干扰情况,进行了分析线的选择,分别用酸溶解法和碱溶解法溶解铝合金样品,测定了方法检出限,方法回收率98％-100.3％。该方法准确、可靠、简便、快速。
A method of determination of Sc in aluminum alloy by ICP-AES was reported in this paper. The spectral interferences deriving from more than forty foreign elements, i.e. Al, As, Au, B, Be, Ca, Cd, Ce, Co, Cr, Cu, Dy, Er, Fe, Ga, Gd, Hf, Ho, K, La, Li, Mg, Mn, Mo, Na, Nb, Nd, Ni, P, Pb, Pd, Pr, Pt, Sb, Si, Sm, Sn, Sr, Ta, Tb, Ti, Tm, V, W, Y, Zn and Zr in the determination of scandium were investigated. The solution concentrations of the studied elements ranged from 0.01 mg.mL(-1) to 1.0 mg.mL(-1). The optimum analytical spectral line of Sc was also selected according to the spectral interferences investigated and the elements, which existed in Al alloys , and their contents. The aluminum alloys were dissolved by acids or by NaOH resolution. The respective detection limits of the two dissolving methods were determined. The recovery tests were carried out by adding diverse contents of Sc to different types of Al alloys. The recovery rates were in the range of 98%-100.3% and the relative standard deviations were less than 2.3%. This method is accurate, rapid and convenient to determine Sc , whose content ranges from 0.01% to 0.50% in Al alloys.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2003年第5期968-971,共4页
Spectroscopy and Spectral Analysis
