Thermal Desorber
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| Brand | Zhuhui |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Secondary Thermal Desorber |
| Automation Level | Fully Automated |
| Primary Desorption Temperature Range | 40–400 °C |
| Secondary Desorption (Cryofocusing) Temperature Range | −35 to 450 °C |
| Valve & Transfer Line Temperature Range | 40–240 °C, ±1 °C accuracy |
| Cryotrap Temperature Range | −35 to −5 °C |
| Sample Tray Capacity | Dual 20-position (40 total) |
| Cryofocusing Rate | >70 °C/s |
| Peak Width (Secondary Desorption) | <3 s |
| RSD | ≤2.5% (benzene in 0.05 μg methanol) |
| Sample Tube Dimensions | 1/4″ OD × 3.5″ L |
| Simulated Sampling Flow | 0–200 mL/min |
| Power | 500 W peak |
| Dimensions | 600 × 370 × 400 mm |
| Net Weight | ~25 kg |
| Brand | Zhuhui |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Two-Stage Thermal Desorber / Cold-Trap Thermal Desorber |
| Automation Level | Fully Automated |
| Primary Desorption Temperature Range | 40–400 °C |
| Secondary Desorption Temperature Range | −35–450 °C |
| Valve Heating Range | 40–240 °C, Accuracy: ±1 °C |
| Transfer Line Temperature Range | 40–240 °C, Accuracy: ±1 °C |
| Cold Trap Temperature Range | −35 to −5 °C |
| Temperature Control Accuracy | ±1 °C |
| Sample Positions | 40 |
| Cold Trap Cooling Method | Semiconductor-based |
| Secondary Desorption Ramp Rate | >70 °C/s |
| Peak Width (at 450 °C) | <3 s |
| Sample Tube Dimensions | 1/4″ OD × 3.5″ L |
| Enrichment Time | 0–60 min |
| Injection Time | 0–10 min |
| Simulated Sampling Time | 0–60 min |
| Simulated Flow Rate | 0–200 mL/min |
| RSD | ≤2.5% (benzene in 0.05 μg methanol) |
| Max Power Consumption | 500 W |
| Gas Path Materials | Passivated 316 stainless steel (RESTEK Siltek®/Sulfinert®-treated), PTFE seals, heated valve oven & transfer lines integrated |
| Compliance | GB 50325-2020, GB/T 18883-2022, HJ 583-2010, HJ 644-2013, HJ 734-2014 |
| Brand | ZHYSHEN |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Secondary Thermal Desorber |
| Automation Level | Fully Automated |
| Sample Capacity | 20 positions per channel (dual-channel, total 40 samples per batch) |
| Compliance | HJ 644–2013, HJ/T 400–2007, GB/T 18883–2002, HJ 583–2010, GB 50325–2020, HJ 734–2014 |
| Thermal Zones | Four independently controlled zones (primary desorption, valve oven, transfer line, secondary desorption) |
| Sample Tube Activation | Built-in programmable tube conditioning |
| GC Interface | Universal hardware interface for Agilent, Thermo Fisher, Shimadzu, PerkinElmer, and domestic GC systems |
| Optional Accessories | Ambient-temperature or cryo-cooled secondary desorption module, fused quartz transfer line, replaceable injection needle |
| Brand | Zoeyun |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Dual-Stage Thermal Desorber |
| Automation Level | Fully Automated |
| Sample Capacity | 64 Positions |
| Heating Zones | 4 Independent Zones (Desorption Chamber, Injection Valve, Transfer Line, Secondary Desorption Trap) |
| Cooling Method | Electronic Peltier Cooling (No Liquid Nitrogen Required) |
| Sample Tube Material Compatibility | Standard 1/4" OD Stainless Steel or Silica Tubes |
| Gas Flow Control | Mass Flow Controllers (MFCs) |
| Leak Detection | Automatic Tube Integrity Check |
| Interface | GC/GC-MS Synchronization with Start/Stop & Remote Control Signal Support |
| Software Features | Method Programming, Queue Management, Audit Trail, Event Logging, Tube Aging & Calibration Simulation |
| Compliance Standards | ASTM D6196, ISO 16017-1, US EPA TO-17, HJ 583–2010, HJ 644–2013, HJ 734–2014, GB/T 18883–2022, GB 50325–2020 |
| Brand | Zyuyou |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | ATDS-20S Max |
| Instrument Type | Dual-Channel Secondary Thermal Desorber |
| Automation Level | Fully Automatic |
| Sample Capacity | 40 positions (2 × 20) |
| Compliance | HJ 644–2013, HJ/T 400–2007, GB/T 18883–2002, HJ 583–2010, HJ 734–2014, GB 50325–2020 |