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        About  LINer EXchanger

Automatically changing liners is a technique that has already been used for many years. ATAS GL has successfully applied this approach in the Direct Thermal Desorbtion (DTD) unit. Now we introduce its second generation: LINer EXchanger.

Advantages are:

Tray capacity 28 or 98
Uses standard 11mm septa and is compatible with the Merlin Microseal
Normal septum purge (removes septum bleeding, reduced risk of carry over)
Normal liquid injection without different configuration
Uses standard OPTIC liners
No transport adopter, just normal liners/sample tubes
Based on the OPTIC 3
Little if any sample preparation is required,
Can be automated by FOCUS / CombiPAL
Selective desorption of components of interest without pyrolyzing of the matrix
Low consumable costs
For any type GC system


LINEX, an automated liner exchanger, is designed to be used for Direct (in-injector) Thermal Desorbtion (DTD). It can be quickly, in a matter of minutes, mounted on any standard OPTIC injector. Any of the standard OPTIC liners can be handled by LINEX either in manual or automated mode. In the automated mode liners are transported between tray and injector by the CombiPAL sampling robot equipped with a pneumatic gripping arm.

With LINEX, the multi-sample analysis sequence works in a simple way: head of the injector is opened and a liner containing sample is introduced. The head is closed and the liner is purged with carrier gas. Next, the injector is heated and the sample is transferred onto the column. At the end of the analysis the empty liner is moved back to the tray and the cycle is repeated.

The use of the newly developed LINEX is a most promising approach for analysis of solid and enriched gaseous samples with the fully automated OPTIC GC or OPTIC GC/MS system. There is also a possibility to apply the approach for the analysis of samples with a difficult matrix using the so-called DMI technique. With DMI a minimum sample preparation is required.






















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