Fully automatic thermal desorption instrumentIt is an efficient and accurate sample pretreatment device widely used in environmental monitoring, chemical analysis, food safety, industrial testing and other fields, for extracting and analyzing volatile organic compounds (VOCs) in samples. It is based on thermal desorption technology, which heats the sample container (such as an adsorption tube) to desorb volatile organic compounds, and then performs qualitative and quantitative analysis through gas chromatography (GC) or other analytical equipment. Samples are usually collected in advance through adsorption tubes (such as Tenax, activated carbon, Silica, etc.), where volatile organic compounds are adsorbed onto the adsorbent material. In the desorption stage, the adsorption tube is heated to a preset temperature to release volatile organic compounds from the sample, which are then introduced into the gas chromatography system for separation and analysis.

Here isFully automatic thermal desorption instrumentIts main application scope:

1、 Environmental monitoring field

Environmental air VOCs detection

Collect atmospheric samples in adsorption tubes (such as Tenax, Carbopack, etc.) and analyze toxic and harmful substances such as benzene derivatives (BTEX), aldehydes, ketones, and halogenated hydrocarbons through thermal desorption.

Compliant with standards: EPA TO-17, HJ 644-2013, HJ 583-2010, etc.

Indoor Air Quality (IAQ)

Detect formaldehyde (to be derivatized), benzene, TVOC, etc. released from decoration materials and furniture, and assess residential health risks.

Polluted site investigation

Soil gas, groundwater headspace or adsorption tube sampling, analyzing pollutants such as petroleum hydrocarbons, polycyclic aromatic hydrocarbons (PAHs), chlorinated solvents, etc.

2、 Occupational Health and Workplace Safety

Monitoring of harmful substances in the air of the workplace

Detection of occupational exposure limit (OEL) substances such as n-hexane, trichloroethylene, acetone, toluene, etc. in industries such as printing, spraying, and electronic manufacturing.

Support long-term individual sampling (such as 8-hour TWA), meeting regulatory requirements such as GBZ 159, OSHA, NIOSH, etc.

3、 Material and product release testing

VOC emissions from automotive interiors

According to VDA 270, ISO 12219, HJ/T 400 and other standards, test the VOCs released from the dashboard, seats, adhesives, etc. in the simulated cabin.

Building Materials and Furniture

Measurement of TVOC and specific harmful substances (such as benzene, formaldehyde) emissions from artificial boards, coatings, carpets, etc. (refer to GB 18580, EN 16516, etc.).

Electronic and electrical products

Screening of decomposition products of plasticizers and flame retardants in plastics and cables under RoHS and REACH regulations.

4、 Food and Packaging Safety

Analysis of Food Flavor and Odor

Adsorption tubes capture aroma components (such as esters and terpenes) in the headspace of food for quality control or authenticity identification.

Packaging material migration detection

Analyze the solvent residues (such as ethyl acetate and isopropanol) released by plastic packaging during storage.

5、 Pharmaceutical and Biomedical Research

Detection of residual solvents in drugs

Compliant with ICH Q3C and USP<467>requirements, detect residues of methanol, dichloromethane, tetrahydrofuran, etc. in raw materials or formulations.

Research on exhaled breath biomarkers

Collect exhaled breath from the human body into an adsorption tube, and analyze potential biomarkers of diseases such as acetone, isoprene, aldehydes, etc. after thermal desorption.