摘要
建立了环境大气中乙醛的气相色谱测定方法［１，２］。采样效率在９９％以上，回收率为９２．８％～９９．５％，变异系数为２．５６％～３．２４％。当采样体积为１０Ｌ时，最低检出浓度为０．１４ｍｇ／ｍ３。
A rapid and reliable gas chromatographic method for determining acetaldehyde in air is persented. The analytical procedures are as follows: absorption with re distrilled water,separation with 405 organicsuporter column chromatography and then determination by FID. The sampling efficiency is as high as 99%. The recovery rate and the coefficient of variation of this method are 92.8%～99.5% and 2.56%～3.24% respectively. The detection limit is 0.14 mg/m 3 when the sampling quantity of air is 10 liters.
出处
《环境监测管理与技术》
1997年第1期30-32,共3页
The Administration and Technique of Environmental Monitoring
关键词
乙醛
气相色谱法
测定
大气监测
acetaldehyde,gas chromatography,determination
