Geochemistry Analytical Methods Information

Information about these methods can be obtained from the following ISGS geochemists.

• Ion chromatography (IC): I. Krapac
• Cesium-137 (¹³⁷Cs) analysis: R.A. Cahill
• Radon: Please read:
  from the Illinois Environmental Protection Agency: IEMA Radon Information
  from the University of Illinois Extension: Take Action on Radon for Healthy Homes
  If questions remain contact: R.A. Cahill
• Gas chromatography (GC): S.F. Chou
• Sample preparation and carbon analysis (TOC/IC/OC): L.R. Henderson