Besides the price advantage compared to fully equipped instruments, this stand-alone module allows to configure a customized system including IMS technology. G.A.S.' OEM module can be coupled to any GC systems or alternatively a membrane inlet system, thermo desorption unit, SPME or needle trap can be used. Samples are ionized by using a tritium  source with an intensity below the excemption limits of the EU directive 29/96 EURATOM. Power input is 24 V DC and digital USB 2.0 high speed digital interface is used for output. Introduction of the sample is realized by using a 1/16“ sample line. The device can be heated up to 100 °C and has provide resolution of ~ 100. Parameters of the IMS module are controlled by an external software made by G.A.S..

Advantages  are:

Sensitive: Detection limits in the low ppbv (µg/m3) range for VOCs with heteroatoms like ketones, aldehyds, alcohols, amins or halogenated compounds.
Selective due to specific analyte ion drift times
Flexible: Generates positive and negative ions
No licence for H3 source required according to EU directive 29/96 EURATOM
High reproducibility < 3 % for peak intensity and < 1 % for drift times 
Operation with nitrogen or synthetic air
Works at ambient pressure
Compact
Free from maintenance
Stand alone data aquisition software and software suite for 3D GC-IMS data analysis

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