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.

Date of Patent:
Sep. 04, 2012

Filed:

May. 24, 2010
Applicants:

Chung-hsuan Chen, Taipei, TW;

Chien-hsun Chen, Yingge Township, TW;

Jung-lee Lin, Banqiao, TW;

Ming-lee Chu, Xizhi, TW;

Inventors:

Chung-Hsuan Chen, Taipei, TW;

Chien-Hsun Chen, Yingge Township, TW;

Jung-Lee Lin, Banqiao, TW;

Ming-Lee Chu, Xizhi, TW;

Assignee:

Academia Sinica, Taipei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/34 (2006.01); H01J 37/244 (2006.01);
U.S. Cl.
CPC ...
Abstract

A mass spectrometer and methods for obtaining the mass spectrum of a single macromolecular or biomolecular ion in a mass spectrometer. The methods include creating single macromolecular or biomolecular primary ions in an ion trap by ionization of a macromolecule or biomolecule; ejecting half of the primary ions for detection with a first charge detector; ejecting half of the primary ions to impact upon a conversion dynode, thereby creating secondary ions for detection with charge amplification detector such as a channeltron or an electromultiplier or an MCP.


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