Stable isotope analytical services

We specialize in the determination of carbon, nitrogen, sulfur, oxygen, and hydrogen isotopic composition. We have a range of mass spectrometers for specific applications and can analyze gases, solids, organic liquids, inorganics, and water samples.

Instrumentation 

The lab currently houses four Thermo Electron gas isotope-ratio mass spectrometers with nine preparation devices, and three laser absorption cavity ring-down spectroscopy instruments.

The lab can determine C, N, O, H and S isotope compositions of gases (either purified or in mixtures at atmospheric concentrations), organics (solid and liquid, of plant and animal origin), inorganics, waters, and at compound-specific levels.

1. 1. The DELTA V Advantage is configured through the CONFLO III for automated continuous-flow analysis of C & N isotopes in solid inorganic/organic samples using our Carlo Erba NC2100 Elemental Analyzer (EA).
   2. The DELTA plus Advantage is configured through the CONFLO IV for automated continuous-flow analysis of C & N or S isotopes in solid inorganic/organic samples using our Costech ECS4010 Elemental Analyzer.
   3. The DELTA V Advantage is configured for continuous-flow analysis of N, O, and C isotopes in trace gases (N₂O and CO²) at atmospheric concentrations using a Thermo Finnigan Gas Bench II configured through our Thermo Finnagan Precon.
   4. The DELTA V plus is configured through the CONFLO IV for automated continuous-flow analysis of H, O isotopes in solid inorganic/organic samples using high-temperature pyrolysis (TC/EA) or C & N isotopes in solid inorganic/organic samples using our Costech ECS4010 Elemental Analyzer.
   5. LGR Liquid Water Isotope Analyzer DLT-100 (version II) for measuring H, O isotopes in fresh water samples.
   6. Picarro L2140-I for measuring H, O isotopes in fresh water samples.
   7. Cryogenic Vacuum Extraction Line for extracting water for OH analysis via Picarro L2140-I or LGR LWIA