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| Brand | CDS Analytical |
|---|---|
| Origin | USA |
| Model | 7550s |
| Instrument Type | Dual-Stage Thermal Desorber |
| Sample Capacity | 72 positions |
| Cold Trap Temperature Range | –40 °C to +400 °C (Peltier-assisted pre-concentration) |
| Desorption Temperature Range | Ambient to 400 °C |
| Valve Operating Temperature | Up to 350 °C |
| Detection Compatibility | Universal interface for GC and GC-MS systems (all major brands) |
| Carrier Gas Control | Precision mass flow control with split capability |
| Sample Preservation Mode | Integrated cryo-trap bypass & fraction collection |
| Dry-Purge Function | Automated in-line dry-purge of traps and transfer lines |
| Tube Conditioning | On-board thermal conditioning of sorbent tubes (up to 400 °C) |
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