Chemistry: analytical and immunological testing – Metal or metal containing – Zn – cd – hg – sc – y – or actinides – or lanthanides
Patent
1990-05-24
1991-09-03
Lacey, David L.
Chemistry: analytical and immunological testing
Metal or metal containing
Zn, cd, hg, sc, y, or actinides, or lanthanides
422 64, 422 78, 422 80, 422 8209, 422 83, 436155, 436177, 436178, 436181, 436182, 356 36, 356437, G01N 2100
Patent
active
050454765
ABSTRACT:
For analyzing solid substances on mercury by measuring the atomic absorption, the substance is heated in order to expel the mercury. The generated mercury vapor is conveyed with a carrier gas flow over a body having a large surface made of an amalgam-generating material, so that the mercury vapor bonds and is accumulated as amalgam on the surface of this body. Subsequently, the body is heated in order to set the mercury accumulated as amalgam free again, and is conveyed by a carrier gas flow into a measuring vessel of an atomic absorption spectrometer. The solid substance which is to be analyzed is enclosed within a vessel having a closure which is destroyed during the heating of the solid substance. For this purpose, a cover is sealingly placed onto the vessel above the destructable closure through which cover a carrier gas flow can be supplied and be carried off. Subsequently, the heating of the solid substance takes place with the closure being destroyed, and then the generated mercury vapor being passed by the carrier gas flow over the amalgam-generating body.
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Bodenseewerk Perkin Elmer GmbH
Grimes Edwin T.
Lacey David L.
Murphy Thomas P.
Redding David
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