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在以Zeiss Ⅲ型火焰光度计改装成的装置上,以相同条件观察了不同浓度的甲醇、乙醇、丙醇对钠的原子吸收值及发射值的增强作用。测量了各种醇类、水溶液的表面张力及粘度,喷雾器的喷雾率及有效喷雾率,和火焰温度,并对醇类的增强作用的机理作了一些探讨。实验及计算结果表明,虽然有效喷雾率是决定吸收值增强作用的主要因素,但对于电离电位较低的碱金属,由于火焰温度降低而引起的电离度的减小亦起一定的作用,对于发射值的增强。除了有效喷雾率和电离度之外。还要考虑Boltznman 因子e~(Ei/kT)。
In the device modified by the Zeiss Ⅲ flame photometer, the effects of different concentrations of methanol, ethanol and propanol on the atomic absorption and emission of sodium were observed under the same conditions. The surface tension and viscosity of various alcohols and aqueous solutions were measured. The spray rate and effective spray rate of the sprayers and the flame temperature were measured. The mechanism of the enhancement of alcohols was also discussed. Experiments and calculation results show that although the effective spraying rate is the main factor that determines the absorption enhancement, it also plays a role in the reduction of ionization due to the decrease of the flame temperature for alkali metals with lower ionization potentials. For the emission Value enhancement. In addition to the effective spray rate and the degree of ionization. Also consider the Boltznman factor e ~ (Ei / kT).