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:
Jul. 17, 2012
Filed:
Sep. 05, 2007
Analyzer constituted by gas chromatograph combined with inductively coupled plasma mass spectrometer
Applicants:
Hiroaki Tao, Tsukuba, JP;
Tetsuya Nakazato, Tsukuba, JP;
Inventors:
Hiroaki Tao, Tsukuba, JP;
Tetsuya Nakazato, Tsukuba, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 49/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a new GC/ICP-MS capable of preventing carbon deposition caused by the analysis sample or its solvent. With a GC/ICP-MS, it is effective to introduce oxygen continuously or during a specific period to the part where argon or other makeup gas is introduced to the ICP-MS, and this is achieved by introducing oxygen in air into the gas supply line using an oxygen permeable tube or oxygen permeable membrane. A selector valve is used to introduce permeated oxygen to the aforementioned gas supply line only during a desired period.