abstract |
The present invention is a method for the detection of creatinine in an aqueous solution, particularly urine, which involves contacting the solution with a soluble cupric salt, a hydroperoxide and an oxidizable indicator which provides a detectable response in the presence of oxygen free radicals and a pseudoperoxidase. The invention is predicated on the discovery that cupric ions form a complex with creatinine which complex exhibits peroxidase like activity. |