This section determines the stable isotope ratios of light elements including carbon, nitrogen and oxygen in a wide range of sample types. Methods for determination of hydrogen isotopes are under development.
The section has three isotope ratio mass spectrometers (IRMS) all by Thermo Finnigan:
Delta V Advantage
These are connected to a range of peripherals allowing a wide variety of sample types to be analysed.
Solid samples are analysed using either a Flash EA 1112 Series elemental analyser or a TC/EA high temperature elemental analyser both of which are connected to the Delta Plus XP via a Conflo III.
Gases are analysed using a Gas-bench II attached to the Delta Plus Advantage.
Compound specific isotope analysis is performed by A GC Trace Ultra with combustion columns attached via a GC Combustion III connected to the Delta V Advantage.
For more information about the work in this section and sample preparation contact: Barry Thornton Tel: +44 (0) 1224 395123
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