Fully Automatic Dual-Channel Secondary Thermal Desorption Instrument Pro, JX-20D P (CAT#: STEM-AIAE-0546-ZJF)

The D series Thermal Desorption Analyzers are fully automatic dual-channel dual-stage (cold trap) thermal desorption instruments. They come with either 40 or 60 sample positions and feature a 7-inch capacitive touchscreen. These analyzers are suitable for applications in environmental monitoring, indoor air quality, and other related fields.

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℃, Temperature Control Accuracy 1℃
Cold Trap Cooling Range: -35℃— Room Temperature
Secondary Desorption Temperature Range: -35℃—450℃
Secondary Desorption Heating Rate: >70℃/s
Sample Tube Specifications: Diameter 1/4”, Length 3.5”
Sample Positions: Dual 20 positions
Enrichment Time: 0-60min
Injection Time: 0-10min
Simulated Sampling Time: 0-60min
Simulated Sampling Flow Rate: 0-200ml/min
RSD: ≤2.5% (0.05μg benzene in methanol)
Power: Peak 500W
Dimensions: 600×370×400(mm)
Net Weight: Approximately 25kg

Offers multiple fault detection and handling modes, automatically halting operations and providing prompts in case of mechanical movement anomalies, ensuring reliable and high-precision operation while avoiding damage. Maintenance mode allows for easy instrument maintenance, fault diagnosis, and leak detection.
Features 40 sample positions, with dual-channel simultaneous sampling for doubled efficiency. Equipped with a convenient 7-inch capacitive touchscreen for easy operation.
Utilizes semiconductor cooling technology to save on operating costs.
Capable of lowering trap temperatures to as low as -35°C (depending on ambient temperature).
Fully automates processes such as enrichment and sampling.
Employs gas lines made entirely of passivated and polished 316 stainless steel, with sealing rings made of PTFE material for high-temperature resistance and zero volatile emissions. Sample gas path utilizes passivated RESTEK tubing, Siltek®/Sulfinert® treated stainless steel tubing combined with stainless steel ferrules and fully heated throughout.
Utilizes stainless steel variable-diameter sampling needles with side openings, ensuring strength while significantly increasing the number of sampling pad uses.
Incorporates built-in standard sample simulation sampling functionality.
Demonstrates strong compatibility with various GC and GC-MS systems.
Capable of synchronizing startup with chromatographs and workstations, and can read chromatograph ready signals for seamless coordination with chromatography processes.

Fully Automatic Primary Thermal Desorption Instrument, JX-9AT
Fully Automatic Dual-Channel Secondary Thermal Desorption Instrument, JX-20D
Single Cold Trap Atmospheric Online Concentration Sampler, ZTD-1
Dual Cold Trap Atmospheric Online Concentration Sampler, ZXD-1