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:
Jun. 30, 2009
Filed:
Mar. 31, 2006
Applicant:
Michael Ron Hammer, Sassafras, AU;
Inventor:
Michael Ron Hammer, Sassafras, AU;
Assignee:
Varian Australia Pty Ltd, Mulgrave, Victoria, AU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/73 (2006.01);
U.S. Cl.
CPC ...
Abstract
A spectroscopy system for spectro-chemical analysis of a sample includes a plasma torch () for generating a microwave induced plasma () as a spectroscopic source. The plasma forming gas is nitrogen which can contain an oxygen impurity. Thus the system includes a nitrogen generator () which is preferably supplied with compressed atmospheric air from a compressor () for oxygen to be removed from the air by adsorption. The invention allows the use of an on-site nitrogen gas generator and thus gives cost savings because the need to obtain supplies of bottled high purity gas is eliminated.