Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jimmy Hedin Dahlstrom0
Philip Robert Mallender0
Mattias Algotsson0
Sarah Janet Clegg0
Ronnie Palmgren0
Barry Edmund Johnson0
Douglas Mark Green0
Date of Patent
June 5, 2018
0Patent Application Number
139853600
Date Filed
February 27, 2012
0Patent Primary Examiner
Patent abstract
The invention discloses a sample preservation method which comprises the following steps: a) providing a paper substrate comprising ligands, where the ligands comprise charged groups, b) applying a sample comprising at least one analyte and at least one contaminant on the paper substrate, c) drying the sample on the paper substrate and, d) extracting at least part of the paper substrate to provide a solution of the analyte.
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