Everything about Pyrolysis Gas Chromatography Mass Spectrometry totally explained
Pyrolysis gas chromatography mass spectrometry is a method of chemical analysis in which the sample is heated to decomposition to produce smaller molecules that are separated by
gas chromatography and detected using
mass spectrometry.
How it works
Pyrolysis is the thermal dissociation of materials in an inert atmosphere or a vacuum. The sample is put into direct contact with a
platinum wire, or placed in a
quartz boat inside a platinum coil, and rapidly heated to 600 – 800 C. Large molecules cleave at their weakest points and produce smaller, more volatile fragments. Various methylating reagents, which increase the volatility of polar fragments, can be added to a sample before pyrolysis. These fragments can then be separated on a gas chromatograph (GC).
Applications
Pyrolysis
gas chromatography is very useful for the identification of synthetic polymeric media, such as acrylics or alkyds, and synthetic varnishes. It can also be used for environmental samples., including fossils.
Further Information
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