摘要
挥发性有机物(VOCs)是当前重要的大气污染物,随着环保意识的加强,人们对VOCs关注程度越来越大。本文对VOCs现有应用广泛的GC(GC-FID、GC-PID)和MS(GC-MS、PTR-MS、TOF-MS)方法以及它们运行原理进行了详细的介绍,并根据实际情况,对应用最为广泛的GC-FID和GC-MS方法进行了对比探讨。表明GC-MS检出限、精密度运行情况优于GC-FID,且灵敏性更好,但维护成本较高;GC-FID校准曲线相关性优于GC-MS,但维护成本更低。
Volatile organic compounds(VOCs)are important air pollutants.With the strengthening of environmental awareness,people pay more and more attention to VOCs.GC(GC-FID,GC-PID)and MS(GC-MS,PTR-MS,TOF-MS)methods widely used in VOCs and their operation principles were introduced in detail.According to the actual situation,the most widely used GC-FID and GC-MS methods were compared and discussed.The results showed that the detection limit and precision of GC-MS were better than that of GC-FID,and the sensitivity was better,but the maintenance cost was higher,the correlation of calibration curve of GC-FID was better than that of GC-MS,but the maintenance cost was lower.
作者
高清
GAO Qing(Shanghai MoyeScientific Instrument Co.,Ltd.,Shanghai 201100,China)
出处
《广州化工》
CAS
2021年第10期107-110,共4页
GuangZhou Chemical Industry
