扩散采集-气相色谱法测定空气中7种挥发性有机物  

Determination of Seven Volatile Organic Compounds in Airusing Diffusive Samplers by Gas Chromatography

作　　者：梁淑雯[1] 卢瑜[1] 禹伟腾[1] 李宣[1] 

机构地区：[1]深圳出入境检验检疫局,广东深圳518045

出　　处：《分析科学学报》2011年第6期773-775,共3页Journal of Analytical Science

摘　　要：用扩散采集方法采集空气中环氧丙烷、正己烷、苯、甲苯、乙苯、二甲苯、苯乙烯7种挥发性有机物,建立了气相色谱同时测定这些化合物的分析方法。考察并确定了采集、萃取和气相色谱仪器分析的参数。分析方法的线性回归系数为0.9997～0.9999,检出限为0.037～0.16μg/mL,回收率为89.1%～105%,测定方法的精密度为1.8%～7.0%。方法快速简便,精密度好,回收率高。A determination method of propylene oxide,n-hexane,benzene,toluene,ethylbenzene,xylene and styrene in air was developed by using diffusive samplers coupled to gas chromatography.The operating parameters for sampling,extraction,and gas chromatography separation were optimized.The results showed that the correlation coefficients for the 7 volatile compounds are between 0.9997 to 0.9999 with detection limits from 0.037 to 0.16 μg/mL,and the recoveries are in the range of 89.1%～104.5% with relative standard deviations from 1.8% to 7.0%.

关 键 词：扩散采集 气相色谱 空气 挥发性有机物 

分 类 号：O657.71[理学—分析化学]