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:
Mar. 24, 1992
Filed:
May. 21, 1990
Bernhard Huber, Uberlingen, DE;
Bodenseewerk Perkin Elmer GmbH, Uberlingen, DE;
Abstract
In a device for analyzing samples for mercury and/or hydride-forming elements by means of atomic absorption spectroscopy, a first arrangement for determining the mercury according to the amalgam method comprising passage throttling means in the form of a washing bottle and a tube connected downstream to a reaction vessel, the other end of which tube is connected to the measuring cell. The tube contains a gold net adapted to be heated and recooled according to the amalgam method. The second arrangement by which hydrides of the sample are directly connected to the measuring cell employs a conduit which leads directly to the measuring cell, bypassing the gold net by branching off from between the reaction vessel and washing bottle. The tube is connectable to a carrier gas source between the washing bottle and position of the gold net in the tube through a first shut-off valve. A second shut-off valve is arranged in the conduit directly leading to the measuring cell. The first and the second shut-off valves are interconnected so that opening the first shut-off valve causes the second shut-off valve to close.