Which Hydra Mercury Analyzer is Right for your Application? List of U.S. EPA Methodology EPA Method 245.1 EPA Method 245.2 EPA Method 245.5 EPA Method 245.7 EPA Method 1631E Mercury Manual Cold Vapor AA Technique (Water) Mercury Automated Cold Vapor AA Technique Mercury Manual Cold Vapor AA Technique for Soils Mercury in Water by Cold Vapor Atomic Fluorescence Spectrometry Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry Mercury in Solids and Solutions by Thermal Decomposition, Amalgamation, and Atomic Absorption Spectrophotometry Hydra AA Hydra AA Hydra AA Hydra AF or Hydra AF Gold Plus Hydra AF Gold Plus European Standards – EN Methodology EN-1483 EN-13806 1997 Water Quality – Determination of Mercury Foodstuffs – Determination of Trace Elements – Determination of Mercury by Cold Vapor Atomic Absorption Spectrometry (CVAAS) after Pressure Digestion 1999 Water Quality – Determinations of Mercury by Cold Vapor Atomic Fluorescence Spectrometry (CVAFS) 1998 Water Quality – Enrichment Methods by Amalgamation Hydra AF or Hydra AF Gold Plus Hydra AF Gold Plus