Equipment

Pyrolyser : CDS - Probe 6150

Pyrolysis temperatures : 30 to 1000 ° C

Multi temperature Step : Yes, up to 10 programs

Vector gas : Helium.

Application domain

Structural identification and quantification of polymeric matrices,

VOC thermodesorption at selected temperature (from 30°C to 1000°C).


Pyrolyse-GCMS
Pyrolyse/GCMS d'un masterbach HDPE



Principle

The sample was placed in the insert of the pyrolyzer probe and heated from 30 to 1000 ° C (usually around 550 ° C). This instantly causes the fragmentation of certain macromolecules (polymers) and the simple volatilization of organic molecules (adjuvants, solvents, residual monomers, pollution, etc.) present in the sample.
All these pyrolytic fragments and all these volatilized molecules will be separated by the chromatographic column, then identified by the MS detector (mass spectrometry).

The recognition of “tracer” pyrolytic fragments and the comparison with those obtained with known matrices allows the certain identification of the polymeric matrix (s) of the sample.

Benefits

Fast & simple: 1 analysis = Nature of the trapped volatiles (solvents, adjuvants, etc.) + Nature of the polymer matrix (s).
Suitable for all types of polymers (natural, synthetic ...) and heavy adjuvants (Irganox 1010 ...) or oligomeric (HALS ...),
Requires little sample (a few mg),
No sample preparation (we can inject inorganic matrices),
Quite sensitive (LOQ from 10 ppm to 100 ppm).

Disadvantages

The small quantity of sample injected (a few mg) does not allow relevant repeatability on heterogeneous samples.

Pyrolysis/GCMS in action:

OUR ANALYTICAL EQUIPMENT

During injection into the GC, all organic compounds will be separated by the chromatographic column and then identified by the MS (mass..
GCMS-FID

GCMS-FID

The sample is directly injected into the pyrolyzer oven heated to 550 ° C using a solid syringe. This instantly causes the fragmentation of..
PYROLYZER

PYROLYZER

During the injection into the LC, all the semi-volatile organic molecules will be separated by the chromatographic column and then detected..
UPLC/UV/TOF-MS

UPLC/UV/TOF-MS

During the injection into the LC module, all the semi-volatile organic molecules will be separated by the chromatographic column and then..
UPLC-MS-MS

UPLC-MS-MS

The HeadSpace / GCMS technique does not require preparation. The sample is placed in a gas tight vial and hermetically sealed using a..
HEADSPACE/GCMS

HEADSPACE/GCMS

This spectral analysis makes it possible to know the nature of the covalent bonds present in the sample. Each of them (for example..
IRTF SPECTROMETER

IRTF SPECTROMETER

A SEM (Scanning Electron Microscope) uses an electron beam to obtain enlarged images of very good resolution. It can also be used to..
SEM/EDX

SEM/EDX

Certain molecules form by reaction colorimetric complexes having maximum absorption in UV-Visible. The color of these complexes is read..
UV-VIS SPECTROMETER

UV-VIS SPECTROMETER