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:
Nov. 29, 2016

Filed:

Jun. 02, 2008
Applicants:

Alan Barnes, Derbyshire, GB;

Rod Fry, Greater Manchester, GB;

Inventors:

Alan Barnes, Derbyshire, GB;

Rod Fry, Greater Manchester, GB;

Assignee:

KRATOS ANALYTICAL LIMITED, Manchester, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); H01J 49/16 (2006.01);
U.S. Cl.
CPC ...
H01J 49/164 (2013.01); H01J 49/0004 (2013.01);
Abstract

The present invention provides a method of generating ions from a sample, the method comprising the steps of (1) designating a plurality of sample target sites, and (2) for each of said plurality of sample target sites, generating ions from a plurality of locations associated with the sample target site, wherein said plurality of locations are selected automatically with reference to the said sample target site. Each of the plurality of sample target sites is associated with a discrete sample region, wherein the sample is part of a MALDI ion source and the plurality of discrete sample regions comprise regions of matrix, suitably formed by chemical inkjet printing. The plurality of locations can be at least 5 and preferably at least 10 locations, each of which can be selected randomly or in accordance with a predetermined pattern. Ions generated from the plurality of locations associated with each of the sample target sites are assigned only a single set of sample position coordinates, which coordinates correspond to those of the sample target site. This averaging technique leads to improved data reliability.


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