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:
Feb. 18, 2014
Filed:
Dec. 28, 2010
Kazuo Mukaibatake, Kyoto, JP;
Kazuo Mukaibatake, Kyoto, JP;
Shimadzu Corporation, Kyoto-Shi, JP;
Abstract
When an SIM measurement for ions originating from a target component separated by a chromatograph is performed, the measurement is performed while the mass-resolving power is switched among a plurality of levels of resolving power, with the mass-to-charge ratio fixed at a target value (S), and an extracted ion chromatogram is created based on each of data obtained corresponding to respective mass-resolving powers (S). After the extracted ion chromatograms are obtained, an S/N ratio is calculated for a peak of the target component on each of the chromatograms (S), and a mass-resolving power which yields the highest S/N ratio is selected (S). The selected mass-resolving power is set as the mass-resolving power in the subsequent measurements of the same target component in the same kind of sample (S), and the quantitative determination of the target component is performed using the extracted ion chromatogram obtained with the selected mass-resolving power (S).