Stable Isotope Laboratory

Analyses Available: 

Isotopic analyses of hydrogen (¹H/²H), carbon (¹³C/¹²C), nitrogen (¹⁵N/¹⁴N), and oxygen (¹⁸O/¹⁶O)

• δ¹³C and δ¹⁸O of solid inorganic samples such as carbonate material
• δ¹³C and δ¹⁵N of solid inorganic (such as soils) and organic (such as plant or animal material) by combustion
• δ²H and δ¹⁸O of solid inorganic (such as soils)  and organic (such as plant or animal material) by pyrolysis
• δ²H and δ¹⁸O in water
• δ¹³C of dissolved inorganic carbon (DIC) in water  

Finnigan MAT 252

Kiel III Carbonate Device

The Kiel III Carbonate Device coupled to a Finnigan MAT 252 Isotope Ratio Mass Spectrometer (IRMS) allows for high-precision, high-throughput analysis of carbonate samples following acid digestion.

 δ¹³C and δ¹⁸O of solid inorganic samples

Dual Inlet

The Dual-Inlet system of the Finnigan MAT 252 IRMS allows for the highest precision analysis of pure gas samples following offline preparation. 

• δ¹³C and δ¹⁸O of pure CO₂ samples
• δ¹³C of DIC   

Thermo Scientific Delta V Advantage

 Elemental Analyzer 

The CE Instruments NC 2500 Elemental Analyzer in series with a ConFlo IV universal interface coupled to a Delta V Advantage IRMS, allows for continuous flow analysis following sample combustion at 1000°C. 

• δ¹³C and δ¹⁵N of solid inorganic material, such as soils and sediments
• δ¹³C and δ¹⁵N of solid organic material, such as plant and animal tissues

TC/EA 

The Thermo Scientific TC/EA, with zero-blank autosampler for solids or GC PAL autosampler for water, in series with a ConFlo IV universal interface coupled to a Delta V Advantage IRMS, allows for continuous flow analysis following sample pyrolysis at 1400°C. 

• δ²H and δ¹⁸O of solid inorganic material, such as soils and sediments
• δ²H and δ¹⁸O of solid organic material, such as plant and animal tissues
• δ²H and δ¹⁸O in water  

GasBench II 

The GasBench II coupled to a Delta V Advantage IRMS, allows for analysis of carbonates or DIC following acid digestion. 

• δ¹³C and δ¹⁸O of carbonates
• δ¹³C of DIC 

Contact: Shari Effert-Fanta, 217-244-2192