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. 30, 1984
Filed:
Sep. 15, 1982
Applicant:
Inventor:
Lars G Svendsen, Reinach, CH;
Assignee:
Pentapharm A.G., Basel, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12Q / ; C12Q / ; C12Q / ; C12Q / ;
U.S. Cl.
CPC ...
435 13 ; 435-4 ; 435 23 ; 435 24 ; 435 29 ; 435212 ; 435214 ; 435217 ; 435810 ; 424101 ; 424177 ; 424180 ; 424183 ; 436 16 ; 436 18 ; 436 69 ; 436 86 ; 436 89 ;
Abstract
A process for quantitatively assaying factor Xa from a medium by reacting the medium with tripeptide derivatives having the formula ##STR1## wherein R.sup.5 is a chromogenic substituted amino group capable of being split off by enzymatic hydrolysis to form a colored or fluorescent product H--R.sup.5. The quantity of split product H--R.sup.5 released by the enzymatic action on the tripeptide derivative is determined photometrically, spectrophotometrically, fluorescence-spectrophotometrically, or electrochemically. The quantity of released split product H--R.sup.5 per time unit is proportional to the quantity of enzyme present in the starting material.