摘要
建立了一种用气态分子吸收法直接测定ＳＯ２的方法．考察了当采用Ｎ２为载气蠕动泵断续、连续进样和发生ＣＯ２为载气连续进样时，各实验参数的影响及方法的分析性能．三种进样方法的检出限分别为０．３２μｇ／ｍＬ，０．２０μｈ／ｍＬ，０．２５μｇ／ｍＬ．用断续进样法对实际样品进行了分析，获得了满意的结果．
The present paper covers the determination of sulphur dioxide by means of vapor molecular absorption spectrometry. Operation parameters were examined when the discontinuous and continuous sample introduction systems with carrier gas N2 and continuous sample introduction system with carrier gas CO2 were used. The detection limits obtained by three sample introduction systems were 0. 32μg/mL, 0. 20μg/mL and 0. 25μg/mL, respectively. The analytical results of practical samples by discontinuous sample introdution system were satisfactory.
出处
《吉林大学自然科学学报》
CAS
CSCD
1996年第3期79-82,共4页
Acta Scientiarum Naturalium Universitatis Jilinensis
关键词
气态分子吸收法
二氧化硫
断续进样
测定
vapor molecular absorption spectrometry, sulphur dioxide, discontinuous sample introduction, continuous sample introduction
