Method and reagent for enzymatic determination of creatinine

摘要

For the enzymatic determination of creatinine in aqueous solutions, the creatinine contained in the sample is converted by means of creatinine iminohydrolase into 1-methylhydantoin and a first molecule of NH3, the 1-methylhydantoin formed is converted by means of ATP-dependent 1-methylhydantoinase and N-carbamoylsarcosine amidohydrolase into sarcosine, CO2 and a second molecule of NH3, and the two molecules of NH3 formed are determined together.