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:
Oct. 17, 2023
Filed:
Feb. 17, 2017
Applicant:
Kemira Oyj, Helsinki, FI;
Inventor:
Tapio Honkanen, Porvoo, FI;
Assignee:
Kemira Oyj, Helskinski, FI;
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/528 (2006.01); G01N 1/22 (2006.01); E21B 37/06 (2006.01); G01N 1/34 (2006.01); G01N 1/38 (2006.01);
U.S. Cl.
CPC ...
G01N 1/2202 (2013.01); C09K 8/528 (2013.01); E21B 37/06 (2013.01); G01N 1/34 (2013.01); G01N 1/38 (2013.01); C09K 2208/28 (2013.01); C09K 2208/32 (2013.01); G01N 2001/222 (2013.01);
Abstract
The invention relates to a method for treating a liquid sample, which comprises disturbing iron and at least one organic compound of interest. The, the method comprises addition of a reagent comprising an ammonium salt, alkali metal salt or earth alkali metal salt of hexacyanoferrate to the sample. Iron in the sample is allowed to interact with the reagent and to form a reaction product, the reaction product of iron is separated from the sample, and the amount of the at least one compound of interest is determined from the sample. The invention relates also to use of salt of hexacyanoferrate.