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:
Sep. 07, 1999
Filed:
Aug. 07, 1997
Rolf Nagel, Burstadt, DE;
Steffen Bossert-Reuther, Heidelberg, DE;
Thomas Zeibig, Dannstadt-Schauernheim, DE;
Roche Diagnostics GmbH, Mannheim, DE;
Abstract
The subject matter of the invention is a stable mixture for the detection of alkaline phosphatase, wherein it contains the N-methylglucamine salt of o-cresolphthalein monophosphoric acid and N-methylglucamine as well as an analytical element for the detection of alkaline phosphatase with a matrix that carries this mixture. In addition the invention concerns a method for the determination of alkaline phosphatase using a salt of o-cresolphthalein monophosphoric acid, wherein the sample is brought into contact with a mixture according to the invention or an analytical element according to the invention and a change in color is observed in the presence of alkaline phosphatase. A subject matter of the invention is also a salt of o-cresolphthalein monophosphoric acid with N-methylglucamine as well as a process for producing such a salt.