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Description
The CDS 9305 Thermal Desorption system adds a Mass Flow Controller (MFC) for near-real time sampling. It features a hand-held controller for system maintenance and direct communication. With the highest programmable valve temperature on the market (350°C), the 9305 can venture into applications where other systems can not perform, including VOCs, sVOCs, polar and nonpolar compounds. The two stage trapping and desorption process with Pre-desorb and Pre-heat feature eliminate the need of any Peltier cooling or liquid cryogen to improve the resolution for early eluting molecules. An optional heated sampling line is available to collect air samples.
Available from Alliant Scientific, an authorized CDS Analytical distributor, supplying the CDS Analytical 9305 Thermal Desorption Concentrator with full support for system configuration, installation.
Near‑Real‑Time Single‑Tube Sampling
Unlike traditional concentrators, the 9305 supports near‑real‑time, single‑tube sampling, making it ideal for:
- Continuous monitoring
- Time‑resolved VOC/SVOC studies
- Industrial emissions testing
- Rapid screening applications
This capability significantly enhances responsiveness and analytical throughput.
High‑Temperature Desorption & Heated Pathway
The system features:
- Sample desorb temperature up to 400°C
- Focus desorb temperature up to 400°C
- Valve oven up to 350°C
- Heated transfer line up to 350°C
These high‑temperature capabilities ensure complete analyte recovery and minimal carryover.
Standard Vocarb Trap with Optional Tenax‑TA
The 9305 includes a standard 1/8" Vocarb trap, with optional 6 mm Tenax‑TA for expanded application flexibility.
No Cryogen Required
The system operates without cryogenic cooling, using standard pre‑desorb technology to maintain performance while reducing operating costs and complexity.
Compact & Efficient
With a footprint of 13" × 11" × 18" and a weight of 19 kg, the 9305 is ideal for laboratories needing high‑performance TD‑GC/MS in a compact form factor.
Technical Specifications
- Programmable Times: 0–999.9 minutes
- Focus Trap: Yes — standard 1/8" Vocarb
- Optional Trap: 6 mm Tenax‑TA
- Dynamic Range: C₂–C₃₃+
- Cryogen: Not required (standard pre‑desorb)
- Temperature Accuracy: 1°C
- Tube Heating Rate: 1000°C/min
- Trap Heating Rate: 900°C/min
- Valve Oven Temperature: Up to 350°C
- Transfer Line Temperature: Up to 350°C
- Sample Desorb Temperature: Up to 400°C
- Focus Desorb Temperature: Up to 400°C
- On‑Line Sampling: Near‑real‑time, single tube
- GC Connection: Heated transfer line
- Weight: 19 kg
- Dimensions (W × H × D): 13 in × 11 in × 18 in
Key Applications (SEO‑Boosting)
- VOC and SVOC analysis
- Near‑real‑time emissions monitoring
- Environmental water and soil testing
- Industrial hygiene and contamination screening
- EPA‑aligned purge & trap GC/MS workflows
- Municipal and commercial environmental labs
- Time‑resolved VOC/SVOC studies
Additional information
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