| abstract |
The present invention provides a process for stabilizing the activity of peroxidase in solution by the addition of a specific activity stabilizer, wherein, to the enzyme present in solid or dissolved form, when the peroxidase is used as a conjugate with an immunologically effective substance, there is added, as activity stabilizer, aminopyrine in an amount of from 0.0005 to 2% by weight, referred to the solution. |