Isotope Lab

Equipment

The Isotope Lab is fully equipped for bulk stable isotope analysis and compound specific isotope analysis of organic compounds (²H, ¹³C, ¹⁵N, ¹⁸O), providing solutions for a board spectrum of analytical problems.
Organic chemical analyses by gas chromatography with mass selective detection (GC-MS), flame ionization detection (GC-FID) and thermal conductivity detection (GC-TCD) is performed to identify and monitor characteristic compounds.

1 MAT 253 with GC/C III interface - ¹³C, ¹⁵N
2 MAT 253 with GC-IsoLink - ²H, ¹³C, ¹⁵N
1 MAT 253 with GC-IsoLink - ²H, ¹³C, ¹⁵N; EA - ¹³C, ¹⁵N; Pyrolysis - ²H, ¹⁸O
1 MAT 253 Plus with GC-IsoLink - ²H, ¹³C, ¹⁵N
1 GC-MS
2 GC-FID
1 GC-TCD

Elemental Analyser (EA) – ¹³C, ¹⁵N
Solid and liquid samples are flash combusted in a helium gas flow in the EA. The produced gases of CO₂ and N₂ are transported via open split (ConFlo IV) in the IRMS and the isotope ratios of ¹³C and ¹⁵N are determined.

High Temperature Pyrolysis (HTP) – ¹⁸O, ²H
Solid and liquid samples are thermally chemical decomposed (Temperature 1350-1500 °C) in a helium gas flow in the HTP. The produced gasses of CO and H₂ are transported via open split (ConFlo IV) in the IRMS and the isotope ratios of ¹⁸O and ²H are determined.

GC-Combustion (GC/C) – ¹³C, ¹⁵N
Organic mixtures are separated by a gas chromatopgraphy system. The separated individual compounds are online combusted (940-1000 °C) and the generated gases of CO₂ or N₂ are transported via open split (ConFlo IV) into the IRMS and the isotope ratios of ¹³C and ¹⁵N are determined.

GC-High Temperature Conversion (GC/HTC) – 2H
Organic mixtures are separated by a gas chromatography system. The separated individual compounds are online decomposed (1450 °C) to produce H₂ which is isotopically characterized by IRMS.