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本文为用氧屏蔽空气—乙炔焰的原于吸收分析中,藉加入有机络合剂的方法以提高能形成难离解氧化物的金属的灵敏度作了初步尝试。以铝-8-羟基喹啉络合物为例,研究了在该火焰中的特性,共存元素和无机酸等的干扰,及其消除干扰的方法,从而确定了测定铝的最佳条件。灵敏度达1.1ppmA1/1％吸收。为铝的测定提供了一个新的、快速、准确的方法。应用于硅酸盐岩石中铝的测定,结果满意。
In this paper, oxygen shielding air - acetylene flame absorption analysis, by adding organic complexing agent to increase the sensitivity of the metal can form difficult to dissociate oxides made an initial attempt. Taking the aluminum-8-hydroxyquinoline complex as an example, the properties of the flame, the interference of coexisting elements and inorganic acids, and the method of eliminating the interference were studied. The optimum conditions for the determination of aluminum were determined. Sensitivity of 1.1ppmA1 / 1% absorption. The determination of aluminum provides a new, fast and accurate method. Applied to the determination of aluminum in silicate rock, the results are satisfactory.