空气-乙炔火焰原子吸收法测定铬时共存元素的干扰及其消除方法,已有过不少报导。由于干扰的复杂性,不同作者的报导有不一致乃至相互矛盾之处。我们研究了一些常见的共存元素对铬吸收的影响,并比较了几种干扰抑制剂,结果表明,火焰状态,铬的价态、共存离子浓度以及铬离子本身的浓度不同,干扰效应也就不同。不同作者所用仪器及测 Air-acetylene flame atomic absorption spectrometry for the determination of coexisting elements interference and its elimination methods, there have been many reports. Due to the complexity of the interference, different authors have reported inconsistencies and even contradictions. We studied the effect of some common coexisting elements on chromium absorption and compared several interference inhibitors. The results show that the flame effect, the valency of chromium, the coexistent ion concentration and the concentration of chromium ion are different, and the interference effect is also different . Different authors used instruments and measurements