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:
May. 28, 2013
Filed:
Dec. 24, 2010
Applicants:
Anoop Agrawal, Tucson, AZ (US);
John P. Cronin, Tucson, AZ (US);
Juan Carlos Lopez Tonazzi, Tucson, AZ (US);
Inventors:
Anoop Agrawal, Tucson, AZ (US);
John P. Cronin, Tucson, AZ (US);
Juan Carlos Lopez Tonazzi, Tucson, AZ (US);
Assignee:
Berylliant Inc., Lowell, Tucson, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/64 (2006.01); G01N 33/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of determining beryllium or a beryllium compound thereof in a sample is disclosed by measuring fluorescence. This method discloses improved sample preparation methods, particularly for refractory beryllium materials. The method also discloses methods to improve the detection limit of beryllium including use of optical filters with specific characteristics for selecting the emission wavelengths of the fluorescence signal.