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:
Apr. 29, 2014
Filed:
Mar. 11, 2011
Shinji Yoshioka, Hitachinaka, JP;
Kouhei Mochizuki, Hitachinaka, JP;
Masaki Yoshie, Hitachinaka, JP;
Shinji Yoshioka, Hitachinaka, JP;
Kouhei Mochizuki, Hitachinaka, JP;
Masaki Yoshie, Hitachinaka, JP;
Hitachi High-Technologies Corporation, Tokyo, JP;
Abstract
A mass spectrometer that performs ion-molecule reaction ionization and accurately performs qualitative/quantitative analysis on a sample containing multi-components for a short time is achieved without an increase in the size of the device. A plurality of ion sources (-to-) are connected to each other in series. A controller/analyzer () controls supply of a voltage from a high voltage source () through a discharge needle () to any one or more of the ion sources (-to-). When the plurality of ion sources (-to-) operates, normal APCI is performed by an ion source that is close to a sample loading unit (), and generated ions are discharged to the outside of the ion source by a discharge electrode (). A residual neutral molecule that is not ionized is transferred by an extraction electrode () to an ion source located on the side of a mass spectrometer. Even when it is difficult for an ion source located at a single stage to detect a component, the component can be detected by a combination of the ion sources (-to-).