Optics: measuring and testing – By dispersed light spectroscopy – With sample excitation
Patent
1998-03-11
1999-09-07
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
With sample excitation
G01N 2174
Patent
active
059495383
ABSTRACT:
A transversely or longitudinally heated atomizing furnace for flameless atomic absorption spectrometry. The atomizing furnace has a tube furnace segment and a specimen support disposed in the tube furnace segment. The specimen support is rigidly fixed in the tube furnace. For that purpose, the specimen support has on its underside a central peg or foot which is fixed in a complementary depression or recess formed centrally in the inner wall of the tube furnace, approximately opposite the sample insertion opening. The specimen support and the tube furnace segment are formed from electrographite. The gas-accessible surfaces of the specimen support and the tube furnace segment are coated with pyrocarbon. The two members are non-detachably connected to each other by means of the pyrocarbon coating. The specimen support extends over as large as possible a portion of the length of the tube furnace. On its upper side, the specimen support is formed with a trough that can receive up to 50 .mu.l of solution to be analyzed. The solid mass of the specimen support is structurally minimized.
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Eichardt Klaus
Thiele Bernd
Evans F. L.
Greenberg Laurence A.
Lerner Herbert L.
SGL Carbon AG
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