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Semi-Automatic Secondary Thermal Desorption Instrument Pro, JX-5 PRO (CAT#: STEM-AIAE-0537-ZJF)

Highlights

Utilizes semiconductor refrigeration for cost-saving operation.
Secondary desorption heating rate >70°C, reaching 450°C with peak width <3s.
All gas lines are made of passivated and polished 316 stainless steel, with sealing rings crafted from PTFE material, providing high temperature resistance and no volatile emissions.

Cat Number: STEM-AIAE-0537-ZJF

Application: To detect and measure volatile and semi-volatile organic compounds in various samples, including air, water, and soil.

Model: JX-5 PRO

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Description

The JX-5 PRO Thermal Desorption Analyzer is an automatic dual-stage (cold trap) thermal desorption instrument featuring a 7-inch capacitive touchscreen and a single sample position. It utilizes semiconductor cooling, with the cold trap temperature capable of reaching as low as -40°C (depending on ambient temperature). The injection valve system is motor-driven. It features three functions: standard sample simulation sampling, thermal desorption, and desorption tube activation. The enrichment, injection, and other processes are fully automated. It can be used in conjunction with domestic and imported gas chromatographs and is suitable for applications in environmental monitoring and other fields.

Specification

Primary Desorption Heating Range: 40℃-400℃, Temperature Control Accuracy 1℃
Injection Valve Heating Range: 40℃-240℃, Temperature Control Accuracy 1℃
Sample Transfer Tube Heating Range: 40℃-240℃
Cold Trap Cooling Range: -35℃- -5℃
Secondary Desorption Temperature Range: -35℃-450℃
Secondary Desorption Heating Rate: >70℃/s
Sample Tube Specifications: Diameter ≤6.5mm, Length ≥120mm
Desorption Time: 0-60min
Injection Time: 0-10min
Simulated Sampling Time: 0-60min
Simulated Sampling Flow Rate: 16-160ml/min
RSD: ≤2.5% (0.05μg benzene in methanol)
Power: 500W

Features

Utilizes semiconductor refrigeration for cost-saving operation.
Secondary desorption heating rate >70°C, reaching 450°C with peak width <3s.
All gas lines are made of passivated and polished 316 stainless steel, with sealing rings crafted from PTFE material, providing high temperature resistance and no volatile emissions.
Heating gas lines employ imported high-inertia deactivation stainless steel, with PTFE sealing materials for high-temperature resistance and no volatile emissions.
Precision high-temperature resistant six-way valves are used in the heating valve box, featuring no dead volume and a maximum operating temperature of 240°C. These valves are motor-driven, eliminating the need for external driving gas and ensuring convenience of use. Integration of the heating valve box and heating gas line design reduces intermediate links, minimizing issues related to low resolution caused by dead volume.
Optimal reducing fittings are designed based on calculations of the diameter of the analytical tube and gas path, minimizing dead volume at connection points between the analytical tube and gas path.
Features a 7-inch capacitive touchscreen, combining standard sample simulation sampling, thermal desorption, and analytical tube activation into one unit, providing comprehensive and cost-effective functionality.

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