Features

Simple operation: adopt software control in the whole process to realize automate the process

Cold trap adopts semiconductor refrigeration; the cooling temperature of the cold trap is -10℃ (at room temperature), which meets most requirements of low-temperature enrichment

Direct sample injection is used for enrichment and desorbtion analysis without disassembling the adsorption tube

Network synchronization interface to simultaneously start chromatographic analyzer or workstation while injecting samples

Wide versatility: can be matched with most gas chromatography products

Automatic back blowing of gas path to reduce residue of the last sample and improve the accuracy of next measurement, avoiding cross contamination

Periodic sampling can be set to realize unmanned online monitoring

Applications

       Used together with the chromatographic analyzer or workstation for the detection of trace volatile organic compounds in environmental air at factory boundary, indoor environmental air and in the atmosphere.

Specifications

Principle: electronic refrigeration thermal desorption

Effective enrichment efficiency: 50~100 times

Temperature range of desorbtion analysis: 200℃~300℃

Recovery rate of desorbtion analysis:＞95%

Purge flow: 0~200mL/min (continuously adjustable)

Sampling time: 0~30min

Analysis time: 0~20s

Temperature control precision: ?1℃

Repeatability: RSD≤2%

Enrichment analysis period: 30min~60min

Communication protocol: Modbus-RTU