HJ 584-2010 Determination of Benzene Compounds is a commonly used method for detecting VOCs in ambient air. Due to its simple operation and low experimental cost, it is widely used in various environmental detection stations, disease control systems, and third-party detection units.

This standard specifies the determination of benzene, toluene, ethylbenzene, o-xylene, m-xylene, and p-xylene in ambient and indoor air

Activated carbon adsorption/carbon disulfide desorption gas chromatography method for isopropylbenzene and styrene

Enrich benzene derivatives in ambient and indoor air using activated carbon sampling tubes, desorb carbon disulfide (CS2), and use hydrogen flame ionization

Determination and analysis of FID by gas chromatography.

Specific operations can refer to the standard instructions.

Some third parties require the introduction of an automatic sampler for the convenience of sample injection.

After the analysis of carbon disulfide in the sample, the liquid sample usually contains eight benzene derivatives,

In general, sample with an activated carbon sampling tube, then analyze with 1ml of carbon disulfide, let it sit for half an hour, and directly inject with an automatic sampler. It can also be manually injected, which can be difficult to do manually.