• Carbon and Nitrogen in Solids


• Oxygen and Hydrogen in Solids


• Sulfur in Solids


• Oxygen and Hydrogen of Water


• Dissolved Organic Carbon (DOC) in Water


• Dissolved Inorganic Carbon (DIC) in Water


• Carbonate


• Carbon Dioxide (CO₂) in Gas


• Methane (CH₄) in Gas


• Nitrogen (N₂) and/or Nitrous Oxide (N₂O) in Gas


• Nitrate (NO₃) in Water


• Compound-Specific Stable Isotope Analysis (CSIA)