Principle of Operation
All samples are placed on ceramic holders and set into Sample
Changer where all sample introductions will be handled automatically and
sequentially from there. Once transferred into Sample Heating Furnace, sample is
rapidly combusted. The atomized mercury is transferred and trapped (as gold
amalgam), separating it from the other combusted gaseous products. The
amalgamated-mercury is next readily desorbed and mercury vapor is transferred
and detect via Cold Vapor Atomic Absorption at 253.7nm. The analyzed sample is
retrieved and the next sample is introduced. The sequence continues until all
samples positions defined in the Sample Changer are completed.
With an attachment of Impinger Reduction setup, MA-2000
can be configured for Stannous Reduction / Gold Amalgamation / CVAA analysis for
mercury with proven MDL of down to 0.2 ppt or better.

MA-2000 is in compliance with both USEPA 7473 (Mercury in
Solids and Solutions by Thermal Decomposition, Amalgamation and Atomic
Absorption Spectrometry), ASTM D6722-01 (Total Mercury in Coal and Coal
Combustion Residues by Direct Combustion Analysis) and USEPA 1631e (Mercury by
Oxidation, Purge & Trap and Cold Vapor Atomic Florescence Spectrometry or CVAAS).
MA-2000 exhibits significant advantages with its
flexibility and ability to all samples of all matrices and methods (mentioned
above) just under one platform.
Applications
- Environmental (Liquid & Solid Waste and Gaseous)
- Food (Liquid & Solid matrices)
- Biological (Liquid & Solid matrices)
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