CDS 7550S
CDS adopts a novel way to protect the TD tube by sealing in a reusable gas tight metal chamber, while waiting for the autosampler to pick up.
To improve the resolution of early eluting molecules, CDS adopts pre-desorb and pre-heat technique along with Peltier cooling to mechanically and chemically confine analytes on the analytical trap to improve focusing
The 7550S Thermal Desorption Autosampler has a built in focus trap and does not require a separate sample concentrator.
The high temperature oven (350°C) significantly extends the analyte range from VOCs to sVOCs.
The autosampler can be configured to accommodate standard 1/4" x 3.5" TD tube from various manufacturers from its custom calibration interface
The software is Windows 10 compatible and gives the user full access to method editor and sequence table.
The automated leak check assures the system is air-tight before proceeding with the desorption of your sample.
7550S has capability to perform programable vent based on desorption temperature. This feature could be used as tube conditioning after desorbing the target VOCs of interest.
This optional sample split feature allows the 7550S to quantitatively transfer 1% of sample to GC. Combining with the GC sample split, this feature could offer up to 10,000:1 total split.
TD Tube Positions:
Tube Supported:
Concentrator:
Focus Trap:
Pre-Desorb Pre-Heat:
Peltier:
Tube Heating Rate:
Trap Heating Rate:
Valve Oven:
Transfer Line:
Sample Desorb:
Focus Desorb:
GC Connection:
Internal Standard:
Sample Saver:
Weight:
Dimension (W x H x D):
72
1/4" X 3.5" Or 6 mm X 4.5"
Built-in
Low Thermal Mass Vocarb
Yes, Standard
Yes, Optional from -25°C
1000°C/min
900°C/min
Up to 350°C
Up to 350°C
Up to 400°C
Up to 400°C
Heated Transfer Line
Yes, optional
No
23 kg
56.9cm X 48.2cm X 62.2cm
The CDS 7550S is a stand-alone 72 position Thermal Desorption Autosampler which does not need a separate sample concentrator, like the 7550 model. Built on the 2nd generation autosampler platform, the CDS 7550S is capable of 3D positioning within 1 mm, and thanks to its unique custom calibration, it could handle 3.5" standard Thermal Desorption tube from any manufacturer. These features make CDS 7550 the most reliable Thermal Desorption autosampler available to the market. The 7550S adopts two focus modes as Pre-desorb\Pre-heat function for high humidity sample, and optional Peltier module for lighter compounds, to improve the resolution of early eluting peaks.
Category | Description | Part Number |
|---|---|---|
Instrument | 7550S Thermal Desorption Autosampler with Concentrator 3.5" Tube | 7554-5015(115V)/7554-5016(220V) |
Option | Single Channel Air Sampler | 1010-0573 |
Option | 7550S Sample Split Option | 7553-5036 |
Option | Gas Internal Standard Addition Option for 7550/7550S | 7503-5010 |
Option | Peltier Cooled Focusing Trap Module for 7550S | 7554-5022(115V)/7554-5023(220V) |
Parts | Kalrez o-ring, bottom tube heater seal | 1620-0493 |
Parts | 7550/7550S Top Tube Seal Septum with Hole | 7503-1001 |
Parts | 1/8" SS Trap, Vocarb - 4 1/2" Long | 9301-5055 |
Parts | 1/4"x3.5" Thermal Desorption Tube, Unconditioned, and Tenax TA 60:80 | SU60520-60 |
Parts | Valve Rotor for Stright 8 Port Valve | 2460-0247 |
Parts | 1/4" x 3.5" Thermal Desorption Tube for PAH | C-SIC60564-B |
Parts | 1/4" x 3.5" Thermal Desorption Tube for EPA Method 325 | C-SIC60524-B |
Parts | 7550/7550S Right Gripper | 7502-5042 |
Parts | 1/4" x 3.5" Thermal Desorption Tube for EPA Method 325 | C-SIC60524-B |
Parts | 1/8" SS Trap, packed with Glass Beads 60:80 mesh - 4 1/2" Long | 9301-5076 |
Parts | 7550/7550S Left Gripper | 7502-5041 |
Parts | 1/4" x 3.5" Thermal Desorption Tube for Emissions | C-SIC60567-B |
Parts | 1/4" x 3.5" Thermal Desorption Tube, Tenax TA 60/80 | C-SIC60520-60-B |
Parts | 1/8" SS Trap, packed with Tenax - TA 60:80 mesh - 4 1/2" Long | 9301-5056 |
CDS's single and six tube conditioners are essential accessories for your analysis.
