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:
Feb. 21, 2012
Filed:
Jun. 27, 2008
Joakim Svensson, Uppsala, SE;
Hanno Ehring, Uppsala, SE;
Esfir Lofman, Uppsala, SE;
Lars Andersson, Uppsala, SE;
Joakim Svensson, Uppsala, SE;
Hanno Ehring, Uppsala, SE;
Esfir Lofman, Uppsala, SE;
Lars Andersson, Uppsala, SE;
GE Healthcare Bio-Sciences AB, Uppsala, SE;
Abstract
A method for determining the concentration of a chromatographic medium in a liquid slurry comprises the steps of: providing a column () having a top end () and a bottom end () and adapted to retain a chromatographic medium therein; introducing a defined volume of the slurry () into the column (); providing a liquid flow through the column () from the top end to the bottom end of the column to settle the chromatographic medium in the column; measuring the bed height of the consolidated chromatographic medium or a value related thereto; and determining from the measured bed height or value related thereto the concentration, or a value related to the concentration of the chromatographic medium in the slurry. A device for performing the method as well as the use of the method in packing of especially large scale columns are also disclosed.