The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 1990
Filed:
Mar. 03, 1989
Applicant:
Inventors:
Bruno Hutsch, Bonn, DE;
Bernd Schmidt, Bonn, DE;
Assignee:
Ringsdorff-Werke GmbH, Bonn, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356312 ;
Abstract
A graphite tube furnace and a specimen support are provided for atomic absorption spectroscopy. The graphite tube furnace has end surfaces with slots. The specimen support has an intermediate or middle section with a recess for receiving a specimen and end sections which are wider than the middle section. Upon insertion in the graphite tube furnace, the specimen support is fixed with the wider end sections in the slots in the end faces and the intermediate section is held at a constant distance from the wall of the tube furnace. As a result, current conduction and heat flow between tube furnace and the specimen support are very small.