JX-9AT thermal analyzer is a fully automatic thermal analyzer with 24 sample grades. The injection valve system is driven by a motor, and the needle insertion is done by pneumatic means, with a fully automated process. Equipped with standard sample simulation sampling function, it can be used in conjunction with domestic and imported gas chromatographs. Suitable for fields such as environmental monitoring. Applicable (not limited to) to the following standards:
GB 11737-1989 Hygienic Inspection Standards for Benzene, Toluene, and Xylene in the Atmosphere of Residential Areas - Gas Chromatography Method;
GB 50325-2010 Code for Indoor Environmental Pollution Control of Civil Building Engineering specifies the determination of benzene in indoor air and the determination of total volatile organic compounds (TVOC) in indoor air;
HJ 583-2010 Determination of Benzene Compounds in Environmental Air Solid Adsorption Thermal Desorption Gas Chromatography Method, etc.

Main technical parameters:
1. Analysis of heating range: 40 ℃ -400 ℃, temperature control accuracy of 1 ℃
2. Heating range of injection valve: 40 ℃ -240 ℃, temperature control accuracy of 1 ℃
3. Sample transfer tube heating range: 40 ℃ -200 ℃, temperature control accuracy of 1 ℃
4. Sample tube specification: American standard tube, diameter 1/4 ", length 3.5"
5. Sample grade: 24 digits
6. Heating analysis time: 0-60 minutes
7. Sample injection time: 0-10 minutes
8. Simulated sampling time: 0-60 minutes
9. Simulated sampling flow rate: 0-200ml/min
10. RSD: ≤ 2.5% (benzene in 0.05 μ g methanol)
11. Power: 500W

Instrument features:
1. It can automatically run up to 24 samples without the need for personnel on duty.
2. Adopting high-precision stabilizing valve, with high stabilizing accuracy and stable airflow.
3. All air ducts are made of 316 stainless steel that has been passivated and polished. The sealing rings are made of PTFE material, which is heat-resistant and non-volatile.
4. The heating gas pipeline uses imported high inertia deactivated stainless steel gas pipeline, sealed with PTFE material, high temperature resistant, and non-volatile.
5. The precision high-temperature resistant injection valve is used in the heating valve box, with no dead volume and a maximum operating temperature of 240 ℃. The injection valve is driven by a motor and does not require external driving gas, making it easy to use.
6. The integrated design of the heating valve box and heating gas path reduces intermediate links and minimizes the problem of low resolution caused by dead volume to the greatest extent possible
7. By calculating the diameter of the analytical tube and gas path, the optimal variable diameter joint was designed to minimize the dead volume at the connection point of the analytical tube and gas path.
8. Equipped with standard sample simulation sampling function.
9. Strong compatibility, suitable for gas chromatographs of various brands both domestically and internationally. Easy installation, no need to make any parameter or setting changes to the gas chromatograph, ensuring the consistency and integrity of the gas chromatograph.