为考察电子鼻用于苯系物(BTEX)快速检测的可行性,分别采用电子鼻(zNose4200,GC/SAW)和普通气相色谱(GC522,FID)对其进行分析。结果表明:电子鼻的灵敏度均为普通气相色谱的10倍以上,最高可达140倍。此外,精密度和重现性也优于后者,可用于BTEX快速、实时分析,是一种用于分析环境中挥发性和半挥发性有机物的比较实用的工具。
The electronic nose(zNose4200,GC/SAW) and gas chromatography(GC522,FID) were respectively employed to analyze feasibility of detecting Benzenes(BTEX) with electronic nose.The results show that the sensitivity of electronic nose outperforms the general gas chromatography more than 10 times,and even up to 140 times;and its reproducibility and accuracy are also better than the general gas chromatography and it can benefit volatile and semi-volatile organic compounds analysis.