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:
Mar. 27, 2018
Filed:
Dec. 23, 2016
Methods for increasing sensitivity of detection and/or quantification of negatively charged analytes
Applicant:
Waters Technologies Corporation, Milford, MA (US);
Inventor:
Robert E. Birdsall, Southborough, MA (US);
Assignee:
WATERS TECHNOLOGIES CORPORATION, Milford, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); G01N 30/72 (2006.01); C12Q 1/68 (2018.01);
U.S. Cl.
CPC ...
G01N 30/7273 (2013.01); C12Q 1/68 (2013.01); H01J 49/0031 (2013.01); H01J 49/0036 (2013.01);
Abstract
The present technology provides methods for increasing sensitivity of detection and/or quantification of a negatively charged analyte, e.g., an oligonucleotide, using an analytical system that comprises liquid chromatography and mass spectrometry. The methods comprise passing an acidic solution through the analytical system, i.e., through a fluidic path from the mobile phase reservoir to the detector to remove or displace, at least in part, metal ions adsorbed to charged sites in the fluidic path.