Benzene homologues in water were separated and enriched by head-space single-drop microextraction and determined by gas chromatography.

A standard curve is done by deterring a standard gas of benzene homologues,which can produce an auto database for quantifying the content of trial materials.

Benzene homologues in air of workshops were preconcentrated with the activated charcoal sampling tube, and then desorbed with carbon disulfide.

Benzene and benzene series in the room air was estimated by solvent relief absorption gas chromatography;

Analysis of Volatile Benzene Series in Waste Gas;

Determination of Benzene Series,Benzaldehyde and Phenol in Cigarette Packing Material by Purge,Trap and Gas Chromatography;

Lab-Scale Experiment of Influence on Shallow Groudwater by BTEX in Polluted River;

Study on the Analysis of BTEX in Water by Headspace Gas Chromatography;

Pollution Characteristic and Source Analysis of BTEX in Ambient Air of Olympic Gymnasium before and after Traffic Restriction;

Study on determination of time-weighted average concentration for benzene,toluene and xylenes in air;

To Determine Benzene Standard Samples Using Gas Chromatography;

To Determine Benzene Using Gas Chromatography;