Hydra II Mercury Family – ‘At-a-Glance’ Capabilities Summary Sample Hydra IIAA Hydra IIAF Hydra IIAF Gold Analytical Method Used Chemical reduction followed by cold vapor atomic absorption (CVAA) Chemical reduction followed by cold vapor atomic fluorescence (CVAF) Chemical reduction and Hg pre-concentration followed by cold vapor atomic fluorescence (CVAF) Thermal decomposition followed by amalgamation and atomic absorption • Liquid samples • Hg measured from low ppt to ppm levels • Liquid samples • Hg measured from sub ppt to high ppb levels • Liquid samples • When the lowest detection levels are required • Solid, semi-solid matrices • Analysis without sample preparation Detection Limit Usable Range 0.001 ng – 1500 ng; <25,000 ng with extended range option Hydra IIAA Hydra IIAF Hydra IIAF Gold High Performance Gas/Liquid separator Easy access ’on the fly’ sample introduction system Dual cell detection system for wide dynamic range Built in high concentration protection system Flow through rinse to minimize carryover even at ultra-low levels Counter-flow Nafion® membrane dryer to minimize vapor formation in detector cells Can be reconfigured to liquids analysis Can be reconfigured to solids analysis Hydra IIAA Hydra IIAF Hydra IIAF Gold Ultra-trace analysis mode with gold amalgamation for lower detection levels Regulatory and/or ‘Standard’ Methods – System Selection Guide (US) EPA 245.1 7 Mercury Analyzers for a Cleaner Tomorrow