Silicone sampling tube (including acidic, alkaline, and impregnated types)

Silicone sampling tube: can collect many toxic substances such as benzene, toluene, xylene, butadiene, methane, pyridine, trichloroethane, cyclohexane, ethylbenzene, etc.

Length specification: diameter6 × 80mm, diameter 6 × 120mm, diameter 6 × 150mm

Various specifications can be customized, including acidic, alkaline, etc(Optional)

There are generally two types: solvent desorption type, which is carbon disulfide desorption type, and thermal desorption type.

Solvent desorption type: specification is6 x 80mm， 150mg of 20-40 mesh activated carbon processed inside, divided into two sections: 50mg in the front section and 100mg in the back section. The diameter of the two sections of the dissolution seal is about 2mm. This sampling tube is used in conjunction with the sampler. When sampling, use a small grinding wheel to open both ends of the sampling tube at the sampling point, connect the 50mg end to the sampler inlet, and adjust the sampler flow rate and sampling time as needed to start sampling. After sampling, seal the two ends of the sampling tube with plastic caps and bring it back to the laboratory for analysis using a gas chromatograph. The analysis method refers to the "GB Workshop Air Monitoring Method" Third Edition.

Thermal desorption type: specification is6 x 120mm， 100mg of 20-40 mesh activated carbon processed inside and biased towards one end, with a diameter of about 2mm for the two sections of the dissolution seal. This sampling tube is used in conjunction with a sampler. During sampling, use a small grinding wheel to open both ends of the sampling tube at the sampling point. Connect the end biased towards activated carbon to the air inlet of the sampler. Then adjust the flow rate and sampling time of the sampler as needed to start sampling. After sampling, seal the two ends of the sampling tube with plastic caps and bring it back to the laboratory for analysis using a thermal desorption furnace. The analysis method refers to the third edition of the "GB Workshop Air Monitoring Method".

Compared with thermal desorption, the sample collection process is the same for solvent desorption. However, when solvent desorption is brought back to the laboratory for analysis by a gas chromatograph, it will produce odors, which requires higher requirements for the staff.

Compared with glass absorption bottle sampling, activated carbon sampling tube sampling is convenient, fast, has strong absorption capacity, high data accuracy, low cost, and easy to carry for on-site sampling. At present, domestic environmental monitoring stations and health and epidemic prevention stationsMore than 80% of the collected toxins use this method, which is also a recommended product by the Institute of Labor Health and Occupational Disease Prevention and Control of the Chinese Academy of Preventive Medical Sciences.