摘要
本文建立了用纯水直接吸收环境空气或工业废气中的甲醇，采用顶空进样，气相色谱进行定性定量测定。该方法最低检出质量浓度为0．500mg·m^-3相对标准偏差在4％-6．2％之间，加标回收率在88％～111％之间。结果表明，方法简单灵敏，线性范围良好，检出限低，精密度好，定性定量准确；经实际样品测定，完全满足环境空气和废气中甲醇的监测要求。
The method of determination of methanol in ambient air and exhaust air was established in the paper, which was using distilled water adsorption and determined by headspace gas chromatography.The mass coneentration is 0.500mg^-3,the relative standard deviation is 4%-6.2%,the fraction product is between 88% and 111%. The method was simple and sensitive, it also had broad linear scale, low MDL, good precision, accuracy qualitative and quantitative accuracy. The method can satisfy the demand of monitoring of methanol in ambient air and exhaust air via the sample test.
出处
《化学工程师》
CAS
2016年第1期28-30,共3页
Chemical Engineer
关键词
顶空气相色谱法
环境空气
废气
甲醇
headspace gas chromatography
ambient air
exhaust air
methanol
