Patent ID: 7816145
Filing Date: 2010-10-19
Classification: C12Q,G01N,Y10T

Abstract:
1. A method for measuring a concentration of creatinine contained in urine or blood, comprising the steps of: (A) mixing urine or blood containing creatinine with a creatinine quantitative reagent containing a metal complex of at least one of hexacyanoferrate and hexacyanoruthenate in the absence of picric acid and in the absence of any enzyme responsive to creatinine, to cause the creatinine to reduce the metal complex, wherein, the urine or blood after the mixing in step (A) has a pH of not less than 2.5 and not more than 7; (B) electrochemically measuring an amount of the metal complex reduced in step (A); and (C) determining a concentration of the creatinine contained in the urine or blood from the amount of the reduced metal complex measured in step (B).