提出一种利用气态分子吸收现象进行碘化物直接测定的新方法,检出限为0.89 ppm,并对实验条件的选择进行了系统的研究,讨论了影响分析灵敏度的一些因素。 A new method for direct determination of iodide using gaseous molecular absorption was proposed. The detection limit was 0.89 ppm. The choice of experimental conditions was systematically studied. Some factors influencing analytical sensitivity were discussed.