Zhuhui
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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 |