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. 31, 1978
Filed:
Aug. 16, 1976
Applicant:
Inventors:
Dieter Hundt, Percha, uber Starnberg, DE;
Wolfgang Gruber, Tutzing-Unterzeismering, DE;
Michael Klarwein, Garmisch-Partenkirchen, DE;
Peter Roeschlau, Seeshaupt, DE;
Assignee:
Boehringer Mannheim GmbH, Mannheim-Waldhof, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
252408 ; 2323 / ; 1951 / ; 424-2 ; 424-3 ;
Abstract
The activity of alkaline phosphatase in aqueous solution, especially in reconstituted serum, is kept constant by adding to the phosphatase-containing solution Mn.sup.2+ or Cd.sup.2+ ions, preferably to an end concentration of 0.05 to 0.5 mMol/liter of Mn.sup.2+ or 0.05 to 0.1 mMol/liter of Cd.sup.2+. Control serums comprising the Mn.sup.2+ and/or Cd.sup.2+ ions in human or animal serum or serum-like compositions are also provided.