Using the classic chemistry defined by the Marsh Test for Arsenic and other hydride forming metals, and the Hatch and Ott cold vapor reaction specifically for Mercury. The model 1018 batch mode attachment for flame atomic absorption system allows low PPB and high PPT sensitivities for these elements, respectively.
Cold vapor method employs a simple acid matrix for the sample and uses Stannous Chloride for the reducing reaction to generate PPT level data for Mercury
Simplified installation to existing flame AAS and predefined reaction chemistry allows an easy start up for rapid operation.
Quartz absorption cells easily fit over burner head on Buck Atomic absorption spectrometers using included bracket for both hydride and cold vapor operation. Buck does not make brackets for other AA systems.
Uses argon or Nitrogen for carrier gas, no need for Hydrogen for most applications.
Hydride generation technique commonly used for As, Sb, Se and occasionally for Sn, Bi, Te and Ge; uses common acids & sodium borohydride reducing agent for low PPB detection limits in prepared samples.
Meets the requirements for EPA standard methods 245.1, SW-846 and the 200 series potable water tests.
Compact size allows unit to be placed conveniently next to systems.
Readily available reaction flasks provide convenient sample prep and analysis in one vessel for high throughput work.
EPA Method - 245_1 - Mercury - Manual Cold Vapor Technique.pdf
EPA Method - 245_5 - Mercury In Sediment Manual Cold Vapor.pdf