近几年来,用气相色谱法测定氰化物的研究颇多,其中以甲基化法较为简便。本文采用通气法浓缩,在吸收管内以甲基化的方式,收集少量气体为试样,用氢焰离子化检测器进行氰化物的气相色谱测定,得到了良好的结果。将此法用于水和大气等环境试样分析,检出界限可达ppb级,准确度和精密度也都令人满意。 In recent years, there are many studies on the determination of cyanide by gas chromatography, of which the methylation method is relatively simple. In this paper, the method of aeration concentration, in the absorption tube to methylation, the collection of a small amount of gas as a sample, hydrogen flame ionization detector for the determination of cyanide gas chromatography, obtained good results. This method is used for water and atmospheric environmental sample analysis, detection limits up to ppb level, accuracy and precision are also satisfactory.