Delta V with Gasbench, EA, GC
Thermo Fisher Scientific Delta V plus continuous flow system
The lab has two Thermo Fisher Scientific Delta V Plus isotope ratio mass spectrometers set up for continuous flow analyses. The mass spectrometers are set up with different peripherals.
One Delta V plus is coupled to a Gasbench II, which is an on-line preparation and introduction system for δ18O of water samples, δ13C of dissolved inorganic carbon in water and δ13C and δ18O in carbonates. A second peripheral for this instrument is a Precon with a Trace GC for analysing the stable C, N and O isotopes of trace gas concentrations of CH4 and N2O respectively.
The second Delta V plus is coupled to a Thermo Scientific Isolink GC with a Gerstel CIS 6 PTV injector. This is mainly dedicated to δD and δ13C analyses of N-alkanes and gasses. The setup and methods are optimized for n-alkanes of leaf waxes from lake sediments. The mass spectrometer is also coupled to a Flash 1120 Elemental Analyzer for analysing nitrogen and carbon isotopes in solids, covering a wide range of sample types and a Thermo Scientific Flash HT set up for δD, δ18O and δ34S analyses of solids.