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.:

US 10478749 B1

Date of Patent:

Nov. 19, 2019

Filed:

May. 29, 2014

Apparatus and method for introducing a sample into a separation unit of a chromatography system

Applicant:

Agilent Technologies, Inc., Santa Clara, CA (US);

Inventor:

Edwin E. Wikfors, Landenberg, PA (US);

Assignee:

Agilent Technologies, Inc., Santa Clara, CA (US);

Attorney:

Primary Examiner:

Natalie Huls

Assistant Examiner:

Monica S Young

Int. Cl.

CPC ...

G01N 30/20 (2006.01); G01N 30/34 (2006.01); G01N 30/16 (2006.01); G01N 30/32 (2006.01); G01N 30/38 (2006.01); G01N 30/46 (2006.01); G01N 30/02 (2006.01); B01D 15/14 (2006.01); B01D 15/40 (2006.01); B01D 15/32 (2006.01); B01D 15/18 (2006.01);

U.S. Cl.

CPC ...

B01D 15/14 (2013.01); B01D 15/18 (2013.01); B01D 15/325 (2013.01); B01D 15/40 (2013.01); G01N 30/02 (2013.01); G01N 30/16 (2013.01); G01N 30/20 (2013.01); G01N 30/32 (2013.01); G01N 30/34 (2013.01); G01N 30/38 (2013.01); B01D 15/1878 (2013.01); G01N 30/463 (2013.01); G01N 30/465 (2013.01); G01N 2030/324 (2013.01); G01N 2030/342 (2013.01);

Abstract

An apparatus introduces a sample into a separation unit of a chromatography system with a mobile phase, including first and second mobile phase components. The apparatus includes first and second pump systems, and an injection unit. The first pump system provides the first mobile phase component, first and second portions of the first mobile phase component flowing through first and second branches, respectively. The second pump system provides the second mobile phase component, a first portion of the second mobile phase component flowing through a third branch. The injection unit receives a combined stream of the first portions of the first and second mobile phase components provided via the first and third branches, respectively, and injects the sample into the combined stream to form a sample-containing stream, which is subsequently combined with the second portion of the first mobile phase component to form a diluted sample-containing stream.

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