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:
Jan. 03, 2017

Filed:

Jul. 01, 2015
Applicant:

Microsaic Systems Plc, Woking, Surrey, GB;

Inventors:

Steven Wright, Woking, GB;

Alexander Iain McIntosh, Woking, GB;

Assignee:

MICROSAIC SYSTEMS PLC, Woking, Surrey, GB;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 30/72 (2006.01); G01N 33/487 (2006.01); G01N 30/82 (2006.01); H01J 49/16 (2006.01); G01N 1/40 (2006.01); G01N 30/88 (2006.01); G01N 30/60 (2006.01); H01J 49/00 (2006.01); H01J 49/04 (2006.01);
U.S. Cl.
CPC ...
G01N 30/7233 (2013.01); G01N 30/7266 (2013.01); G01N 33/487 (2013.01); G01N 30/6095 (2013.01); G01N 30/82 (2013.01); G01N 2001/4016 (2013.01); G01N 2030/8813 (2013.01); G01N 2030/8881 (2013.01); H01J 49/0031 (2013.01); H01J 49/0431 (2013.01); H01J 49/165 (2013.01);
Abstract

Monitoring biomolecule separations by mass spectrometry is described. The mixture to be separated is introduced into a first fluidic stream, which then passes through a chromatography column. Small samples are periodically taken from the first fluidic stream as it leaves the chromatography column and injected into a first branch of a second fluidic stream. Low molecular weight components detrimental to the efficient operation of the mass spectrometer are removed by an in-line dialysis cell. A second fraction of the second fluidic stream acts as the dialysate. In a second and preferred system provided in accordance with the present teaching, the first fraction of the second fluidic stream is further split downstream of the sampling mechanism through the use of a three-way connector. Approximately 0.3 to 5 microliters per minute continues through the dialysis cell and thereafter to the electrospray emitter of the mass spectrometer.


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