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:
Dec. 31, 1991
Filed:
Jan. 11, 1991
Robert B Cody, Newton, NH (US);
Andrew N Tyler, Reading, MA (US);
JEOL Ltd., Tokyo, JP;
Abstract
A method of mass spectrometry comprises the steps of ionizing the mixture of the sample and the matrix by repeated irradiation with primary particle beam pulses; introducing the produced ions into a mass analyzer and separating the ions with the mass analyzer according to their mass/charge ratios; detecting signals indicative of the number of the separated ions with an array detector; and integrating the detected signals during data collection periods in synchrony with the irradiation pulses of the primary particle beam. The data collection periods have a predetermined duration and predetermined start times relative to the primary particle beam pulses.