Thermal Desorption
CDS 7550S
Product Features
72 Position Autosampler
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.
Dual Mode Focusing Trap
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
Stand-Alone Autosampler
The 7550S Thermal Desorption Autosampler has a built in focus trap and does not require a separate sample concentrator.
High Temperature Valve Oven Programmable to 350°C
The high temperature oven (350°C) significantly extends the analyte range from VOCs to sVOCs.
Excellent TD Tube Compatibility
The autosampler can be configured to accommodate standard 1/4" x 3.5" TD tube from various manufacturers from its custom calibration interface
Powerful Windows Based Software
The software is Windows 10 compatible and gives the user full access to method editor and sequence table.
Built-in Leak Check
The automated leak check assures the system is air-tight before proceeding with the desorption of your sample.
Optical Sensor
The optical sensor detects the status of the TD tube on every step, both transporting to and from the heater oven.
Precision Robotic Arm
The robotic arm holds 1 mm X,Y,Z accuracy. The reliable gripping mechanism has the capability to handle both Pyrex glass and stainless steel tubes.
Product Introduction
Specifications:
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
Summary
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.
Applications
Parts & Options
Instruments
Description
SKU
CDS 7550S Thermal Desorption AS w/ built-in concentrator (3.5" Tube) 220 Volt
7554-5016
CDS 7550S Thermal Desorption AS w/ built-in concentrator (3.5" Tube) 115 Volt
7554-5015
Options
Description
SKU
Gas Internal Standard Addition
7503-5010
Dual Mode Peltier (Electric) Cooled Focusing Trap Module for CDS Model 7550S Thermal Desorption Unit - 115V
7554-5022
Dual Mode Peltier (Electric) Cooled Focusing Trap Module for CDS Model 7550S Thermal Desorption Unit - 220V
7554-5023
Parts
Description
SKU
1/8" Stainless Steel VOCARB Trap
9301-5055
1/8" Stainless Steel Tenax Trap
9301-5055
Septum with hold, top tube seal
7503-1001
Kalrez o-ring, bottom tube seal
1620-0493
