Ge X
National Analysis and Testing Centre for Iron and Steel, CISRI, 100081 Beijing.
Guang Pu Xue Yu Guang Pu Fen Xi. 2000 Feb;20(1):68-70.
A method for the determination of trace tin in aluminum alloy by ICP-AES is proposed. The sample is dissolved in the acid mixture of HCl, HNO3, and a little HF is added dropwise. By fuming with sulfuric acid, the sample is then dissolved in HCl media for the determination of tin. Two sensitive wavelengths of tin in ultra-violet region are selected as analytical lines. The results are in accordance with spectrophotometric and FAAS methods, and a standard reference material of aluminum alloy is also analyzed with satisfactory results. The method is simple, rapid and sensitive, It can be used for the determination of trace tin in aluminum alloys.
提出了一种用电感耦合等离子体原子发射光谱法（ICP - AES）测定铝合金中痕量锡的方法。将样品溶解于盐酸和硝酸的混合酸中，并逐滴加入少量氢氟酸。通过用硫酸冒烟处理，然后将样品溶解于盐酸介质中以测定锡。选择紫外区域中锡的两条灵敏波长作为分析线。结果与分光光度法和火焰原子吸收光谱法（FAAS）相符，并且还对铝合金标准参考物质进行了分析，结果令人满意。该方法简单、快速且灵敏，可用于测定铝合金中的痕量锡。
