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:
Mar. 14, 2023

Filed:

Dec. 21, 2018
Applicant:

Waters Technologies Corporation, Milford, MA (US);

Inventors:

Bonnie A. Alden, Whitinsville, MA (US);

Kenneth Berthelette, Millville, MA (US);

Jon Finch, Plymouth, MI (US);

Donna Osterman, Northbridge, MA (US);

Thomas Swann, Hopedale, MA (US);

Thomas H. Walter, Ashland, MA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 1/40 (2006.01); B01D 15/38 (2006.01); B01D 15/42 (2006.01); B01D 15/36 (2006.01); B01J 39/26 (2006.01); B01J 39/05 (2017.01); B01D 15/32 (2006.01); G01N 33/92 (2006.01); G01N 30/06 (2006.01); G01N 30/00 (2006.01);
U.S. Cl.
CPC ...
G01N 1/405 (2013.01); B01D 15/327 (2013.01); B01D 15/362 (2013.01); B01D 15/3847 (2013.01); B01D 15/426 (2013.01); B01J 39/05 (2017.01); B01J 39/26 (2013.01); G01N 33/92 (2013.01); G01N 2030/009 (2013.01); G01N 2030/062 (2013.01); G01N 2405/00 (2013.01);
Abstract

In various aspects, the present disclosure pertains to methods of performing a sample enrichment procedure, which comprise: adding a sample fluid that comprises at least one phospholipid and at least one target analyte to a sorbent that comprises a hydrophobic component and a cation exchange component, thereby resulting in sorbent with bound phospholipid and bound target analyte; adding an aqueous solution comprising an acidic compound and a salt; adding an organic solution to the sorbent thereby desorbing at least a portion of the bound phospholipid from the sorbent; and adding an elution solution to the sorbent, thereby desorbing at least a portion of the bound target analyte from the sorbent and forming a solution of the target analyte in the elution solution. In other aspects, the present disclosure pertains to kits, which may be used in conjunction with such methods.


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