Quantitative determination of urea content oft whole blood is of great inte
rest in the health control of animals. Potentiometric methods using enzyme
sensors are a faster and accesible alternative to the methods usually used
in veterinary laboratories, The paper deals with the use two self-made enzy
me sensors for the determination of urea content of whole blood and plasma.
The results of the measurements where compared with those obtained by usin
g the STAS method for plasma and the analyzer "Reflotron" fbr whole blood.
The enzyme sensors can successfully replace these methods of analysis.