Methods for the analysis of iron and steel, Part 6: Determination of tin content - Flame atomic absorption spectrometric method
钢铁分析方法第6部分:锡含量的测定火焰原子吸收光谱法
Specifies a flame atomic absorption spectrometric method for the determination of tin content of iron and steel. The sample is digested in acid, the tin extracted into trioctyl phosphine oxide in 4-methylpentan-2-one (MIBK) and then aspirated into a nitrous oxide/acetylene flame of an atomic absorption spectrometer. The absorption is measured at 235.5 nm.