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| [Brand | Kechuang |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Benchtop Laboratory GC |
| Detection Principle | Gas Chromatography (GC) |
| Configuration | Dedicated TVOC Analyzer |
| Detection Range | 0–1000 ppm |
| Resolution | < 0.5 µg/m³ (based on 10 L air sample) |
| Accuracy | < 0.5% RSD |
| Response Time | 1–40 min |
| Temperature Control Range | Ambient +3 °C to 450 °C |
| Column Oven Programmable Ramp | Up to 16 stages (expandable) |
| EPC/EFC Precision | ±0.001 psi (pressure), ±0.001 mL/min (flow) |
| Retention Time Reproducibility | < 0.008% RSD |
| Peak Area Reproducibility | < 1.0% RSD |
| Cooling Rate | ≤5 min (350 °C → 50 °C) |
| Dimensions (W×D×H) | 530 × 570 × 506 mm |
| Weight | ≤50 kg] |
| Brand | SciTec |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | GC9800 + HL-800 Dual-Stage Thermal Desorber |
| Detection Principle | Gas Chromatography (GC) |
| Instrument Type | Benchtop Laboratory System |
| Configuration | TVOC Analysis System |
| Detection Range | 0–1000 ppm |
| Resolution | 0.1 ppm |
| Accuracy | ±5% of reading |
| Response Time | <60 s |
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