A direct mercury analyzer (DMA) and a Cold Vapor Atomic Absorption Spectroscopy (CVAAS) instrument have been used to analyze samples high in methylmercury and other forms of mercury with oxidation states of Hgo (elemental), -Hg22+ (mercurous), and/or Hg2+ (mercuric) to determine analytical data equivalency for total mercury. Our equivalency claim is based on the analyses radioactive waste and a performance test, Mixed Analyte Performance Evaluation Program (MAPEP), both of which fell within the uncertianty of the CVAAS instrument = (1s +/- 20%). The DMA has been determined to be the preferred method based on both simulated and radioactive sample testing due to analytical results and ease of use in a radiological environment.

Analysis of total mercury in radioactive waste using a direct mercury analyzer instrument

2019 Fall National Meeting

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