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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 11712660 B1

PDFFull Text
Date of Patent:
Aug. 01, 2023

Filed:

Aug. 10, 2018

Dialysis cell for sample preparation for a chemical analysis method

Applicant:

Metrohm Ag, Herisau, CH;

Inventors:

Markus Läubli, Herisau, CH;

Wolfgang Frenzel, Berlin, DE;

Inga Markeviciute, Berlin, DE;

Daniel Abderhalden, Waldkirch, CH;

Assignee:

Metrohm AG, Herisau, CH;

Attorney:

Finch & Maloney PLLC

Primary Examiner:

Krishnan S Menon

Int. Cl.
CPC ...
B01D 61/24 (2006.01); B01D 61/28 (2006.01); B01D 63/08 (2006.01); B01D 71/14 (2006.01); B01D 71/34 (2006.01); B01D 71/50 (2006.01); G01N 1/34 (2006.01); G01N 30/14 (2006.01); G01N 1/40 (2006.01); G01N 30/02 (2006.01); A61M 1/16 (2006.01); A61M 1/14 (2006.01);
U.S. Cl.
CPC ...
B01D 61/243 (2013.01); B01D 61/28 (2013.01); B01D 63/087 (2013.01); B01D 71/14 (2013.01); B01D 71/34 (2013.01); B01D 71/50 (2013.01); G01N 1/34 (2013.01); G01N 30/14 (2013.01); A61M 1/14 (2013.01); A61M 1/16 (2013.01); B01D 2311/26 (2013.01); B01D 2313/28 (2013.01); B01D 2313/30 (2013.01); G01N 2001/4016 (2013.01); G01N 2030/027 (2013.01); G01N 2030/146 (2013.01);
Abstract

The invention relates to a dialysis cell for sample preparation for a chemical analysis method, in particular for ion chromatography. The dialysis cell comprises a donor channel and an acceptor channel extending parallel thereto. The donor channel and the acceptor channel are separated from each other by a selectively permeable dialysis membrane. In particular, an analyte that is dissolved in a donor solution in the donor channel can enter through the dialysis membrane into the acceptor solution in the acceptor channel. The acceptor channel has at least in some sections a volume that is smaller than the volume of the donor channel extending parallel thereto. Acceptor and donor channels are formed from half-cells, between which the dialysis membrane is arranged, wherein the donor channel and the acceptor channel are designed in each case as a recess in a contact surface of one of the half-cells with the dialysis membrane.

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