To investigate the applicability of portable GC-FID method for the determination of benzene series in waste gas from fixed pollutant emissions,three sets(two imported and one domestic)of instruments were selected for laboratory and field experiments.The benzene series included:benzene,toluene,ethylbenzene,xylene(o;m;p),styrene,and trimethylbenzene(1,3,5;1,2,4;1,2,3).The instrument analysis cycle,detection limit,precision,and accuracy were tested.The results showed that the portable GC-FID instruments for the determination of benzene series in waste gas from fixed pollutant emissions have good applicability,capable of meeting the control and monitoring requirements for benzene series compounds in domestic fixed source waste gas.The performance indicators of the domestic instruments can all meet or even exceed the performance standards of imported instruments.It was recommended that the country should establish corresponding method standards for project approval.
关键词
GC-FID/苯系物/分析周期/检出限/精密度/准确度
Key words
gas chromatography-hydrogen flame ion detector/benzene series/analysis cycle/detection limit/precision/accuracy
维普
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