钢铁中的铬可以在贫燃与富燃空气—乙炔火焰和笑气乙炔火焰中测定,其测定受火焰条件、溶液介质及其价态的影响很大,在富燃空气—乙炔火焰中,共存元素的干扰尤其严重。 本文采用上述三种火焰条件,对钛合金中测定铬的共存元素干扰、酸介质影响、测定范围及方法的准确度、精密度进行了研究与比较。 Chromium in steel can be measured in lean and rich air - acetylene flames and nitrous oxide acetylene flames. The determination of chromium in steel is greatly influenced by the flame conditions, the solution medium and its valence state, and coexistence in the flammable air - acetylene flames Elements of the interference is particularly serious. In this paper, the above three kinds of flame conditions, the titanium alloy in the determination of co-existence of chromium interference, the impact of acid medium, the determination of the range and accuracy of the method were studied and compared.