溶剂解析气相色谱法测定工作场所空气中正己烷含量

Determination of N-hexane in the Air of Workplace by Solvent Analysis Gas Chromatography

关键词:  气相色谱法  正己烷  空气  溶剂解析

Key words:  gas chromatography  N-hexane  air  the solvent analysis

摘要:

采用溶剂解析气相色谱法测定工作场所空气中正己烷含量。结果表明,正己烷在99.0~990.5μg/ml范围内线性良好,检出限为0.2μg/ml,精密度与重现性好,解析效率为95.0%~104.4%,RCV=2.5%(<7%)。该方法简便、准确、线性范围广、精密度、重复性好。本方法的各种指标均符合《工作场所有害物质监测方法》的要求,可作为工作场所空气中正己烷含量的测定方法。

Abstract:

Establish a method to measure N-hexane content in the air of workplace.Solvent analyzing gas chromatography.N-hexane in the 99.0~990.5 μg/ml scope inside track is good,detection limits is 0.2μg/ml,precise and re-appears well,analysis efficiency is 95.0%~104.4%,RCV=2.5%(<7%).the method is simple,accurate,the linearity scope is wide,precise and re-appearing well,Various index of the method all matches the request of the method of monitoring harmful material in the work place,it could be a method for measuring N-hexane content in the air of workplace.