Sample pretreatment for chromatographic matching of thermal analyzer

TD-1Introduction to Thermal Analysis Instruments:

Thermal desorption instrument is a new type of sample pretreatment device that integrates thermal desorption, simulated sampling of standard samples, and activation design of desorption tubes, making it economical and practical.

Sample pretreatment for chromatographic matching of thermal analyzerUsage and application scope:

The thermal desorption instrument can be used with all imported and domestic gas chromatographs, and the detection concentration of volatile organic compounds in the environment can reach ppb level. In addition to meeting the requirements of "Determination of Benzene in Indoor Air" and "Determination of Total Volatile Organic Compounds (TVOC) in Indoor Air" in GB50325-2010 "Code for Indoor Environmental Pollution Control of Civil Building Engineering", the multifunctional thermal desorption instrument can also be applied to the following fields:

1. Occupational safety, industrial hygiene, and environmental monitoring;

2. Rapid identification of unknown atmosphere;

3. Analysis of spices and essence;

4. Assessment of toxic substance accidents (when personnel can safely return to the accident site);

5. ChemistrySecurity monitoring of the perimeter environment of the warehouse;

6. Quality control testing in polymer and packaging industries;

7. Evaluation of drug solvents and product purity;

8. Residual analysis of drugs and court samples;

9. Collect exhaled gases from patients and detect volatile drug metabolites in their blood in hospitals.

Features and main functions:

Strong universality

Can be used in conjunction with various models of domestic and imported gas chromatographs.

Heating and warming up quickly, with a small gradient, the thermal decomposition furnace and activation furnace can operate simultaneously.

High heating power, fast temperature rise, small gradient, convenient for taking and placing sample tubes.

It also has the function of cleaning the sample adsorption tube, avoiding cross contamination.

The scientific design of installation and sealing of sample tubes is simple, reliable, and easy to operate.

*The sample output tube is designed with heating to prevent sample condensation.

The injection and data processing run synchronously. When in use, simply set the desorption time, injection time, and purge time, and the system will automatically run. It can also trigger an external data processing device to synchronize its operation, greatly reducing timing errors.

Analysis parameter memory, capable of storing 4 types of analysis parameters.

Instrument parameters:

Analysis furnace temperature range: room temperature~400 ℃, increment 1 ℃, temperature control accuracy: ± 0.1 ℃

Sample transmission pipeline range: room temperature~220 ℃; Increment 1 ℃, temperature control accuracy: ± 0.1 ℃

Temperature range of injection valve: room temperature~200 ℃; Increment 1 ℃, temperature control accuracy: ± 0.1 ℃

Activation temperature range: room temperature~400 ℃; Increment 1 ℃, temperature control accuracy: ± 0.1 ℃

Activation quantity: 7 analytical tubes can be activated simultaneously. (Optional)

Analysis of pressure (flow rate) and calibration flow rate: 0~300ml/min, continuously adjustable;

The analysis time, injection time, and activation time can be set freely from 0 to 99 minutes according to the needs of the analyzed sample;

Analysis recovery rate: It can reach over 95% for the selected sample components and corresponding operating conditions;

Linear: Under the selected sample components and corresponding operating conditions, it can generally reach 0.999;

Analysis tube specifications: Suitable for various standard adsorption tubes with an outer diameter of Φ 6 (1/4 inch). The material can be stainless steel tube,Quartz glass tube, hard glass tube, etc