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  3. Gas Chromatography Mass Spectrometry (GC-MS)

Gas Chromatography Mass Spectrometry (GC-MS)

Gas Chromatograph-Mass Spectrometer (GC-MS) systems are at the heart of most ‘gold standard’ procedures utilised in analytical laboratories.  CEPSAR has a number of GC-MS systems, including an Agilent 6890/5973, a Thermo-PolarisQ (ion trap) and a Varian Saturn (ion trap). Complex samples can quickly overwhelm the capabilities of traditional GC-MS analysis techniques. Consequently, important information about the sample is lost.  The Pegasus 4D GCxGC–TOFMS system, from Leco, provides the analyst with four dimensions of analytical resolution for significantly more complete sample analysis.

The main advantages include:

 •  The significantly increased sensitivity over the whole mass range (5-1000 amu).

 •  The separation of compounds that co-elute on standard gas chromatograph systems. Separation of analytes by volatility and polarity enables traditionally unresolved mixtures to be examined in detail, and vastly increases the number of compounds identified.

 •  Greatly increased signal to noise ratio, due to compounds being separated from the column bleed of the first column on the second GC column and an enormous increase in the Spectral Generation Rate.

The instruments can be interfaced with a whole host of sample introduction systems; all forms of samples can therefore be introduced, whether they be solids, liquids or gases.

 

Contact Information

Lead Academic - Dr Geraint Morgan

g.h.morgan@open.ac.uk

Telephone: +44 (0) 1908 655180 (office), +44 (0) 1908 655626 (Lab)

 

Laboratory Manager - Dr Mabs Gilmour

m.a.gilmour@open.ac.uk

Telephone: +44 (0) 1908 858242