1. Stable isotopes for 4 light isotopes (H, C, N, O)
2. Tritium
3. Gas Fingerprint Analyses
   a. Gas Chromatography
   b. TCD (N₂,O₂+Ar,CO₂,CH₄)
   c. TCD + FID (C₁ - C₆)
   d. Carbon-14 (¹⁴C) on CH₄
   e. Delta C-13 (δ¹³C) on CH₄
   f. Delta D (δD) on CH₄
   g. ¹⁴C on pure CO₂ from gas sample
   h. δ¹³C on CO₄
   i. Tritium (³H) on CH₄
   j. Prepare samples with very little CO₂/CH₄ for Accelerated
       Mass Spectrometry (AMS) for ¹⁴C
       source detected in the environment
4. Water
   a. ¹⁴C of dissolved inorganic carbon (DIC)
   b. δ¹³C of DIC
   c. Tritium (³H) (enrichment technique)
   d. Tritium (³H) (direct counting)
   e. Prepare dissolved SO₄ for Delta S-34 (δ³⁴S)
   f. Prepare dissolved SO₄ for δ³⁴S and δ¹⁸O
5. Landfill Leachate
   a. ¹⁴C of DIC
   b. δ¹³C of DIC
   c. Tritium (³H) (direct counting)
6. Stable isotope analysis of carbonates (Kiel III: includes δ¹³C and δ¹⁸O)
7. Stable isotope analysis of organic material (Elemental Analyzer: includes δ¹³C and delta N-15 (δ¹⁵N) and C/N ratio)

Contact: Shari Fanta, 217-244-2192