Evolved Gas Analysis TGA/STA – GCMS – FTIR

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Mass Variation (TGA-STA)

For the research and quality control of all kinds of inorganic, organic materials and products the single analysis are not enough. Although the direct coupling of quadrupole Mass Spectrometers to TGA or STA is a well proven method, it has limitations in determining the different components of gas mixtures which often hinder clear identification and interpretation. This is where Gas Chromatography fits in. The two combined techniques allow you to have as many details as possible about the nature of the sample under thermal stress.

Evolved Gas Chromatography Separation (GC)

The evolved gases are injected over a heated transfer line into the heated Automation Autoinjector. The gases were carried over a specific sample loop and transferred to the GC Injector, connected to a chromatographic column.

Identification and Quantification (MS)

The singles components of the gas mixture, transported by the carrier gas (helium) through the column, are released in different times, depending of the interactions with the internal column stationary phase material and then detected and identified by the Mass Spectrometer. A second outlet available can be connected to another instrument simultaneously (FT-IR, MS…).

Autoinjector

Automation offers the most versatile and easy solution to analyze and characterize the gases evolved from the degradation and / or transformation of your samples during a thermogravimetry analysis.
Easier identification through the separation by GCMS ( + FTIR if required ) of each compound within a complex evolved gases mixture.

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How it works

The following video shows how the TGA-GCMS coupling works via the Autoinjector interface.

Specs and Configs

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Interested in AUTOINJECTOR system and applications?