论文部分内容阅读
建立了火焰原子吸收光谱法测定冰晶石中铁的分析方法。样品用高氯酸溶解后,在0.48mol/L的盐酸介质中用空气-乙炔火焰测定了样品中的铁,测定结果与有色金属行业标准方法(邻二氮杂菲光度法)的分析结果一致。检出限为0.004 11mg/L,相对标准偏差(RSD)为0.95%~4.5%,加标回收率为98.00%~101.49%。
A method for the determination of iron in cryolite by flame atomic absorption spectrometry was established. After the sample was dissolved with perchloric acid, the iron in the sample was measured with an air-acetylene flame in a 0.48 mol / L hydrochloric acid medium. The measurement result was in agreement with the analytical result of the nonferrous metal industry standard method (ortho-phenanthroline spectrophotometry) . The detection limit was 0.004 11 mg / L, RSD was 0.95% ~ 4.5%, and the recoveries were 98.00% ~ 101.49%.