Measurement of milk urea or MUN.

ChemSpec 150

The ChemSpec 150 has been specifically designed for the determination of urea (or MUN) in milk. Accurate, compact, fast & reliable, the ChemSpec 150 is the system of choice for milk urea analysis.

• Fully automated & compact
• Capable of analyzing over 150 samples per hour
• Very low cost per sample
• Touchscreen operation
• Enzymatic methodology
• Colorimetric Measuring Principle

The ChemSpec 150 utilizes a modified Berthelot reaction to determine the level of urea in milk.

• A small amount of milk is automatically dispensed in a well thermostated at 40°C. It is then split enzymatically with urease into ammonia and carbon dioxide.
• After an incubation time, dye and activator solutions are added to form a green complex. The color intensity is proportional to the ammonia concentration which is directly proportional to the urea content in the milk.
• The green color intensity is measured spectrophotometrically in a trans-reflectance cell.
• The addition of a catalyst in the dye speeds up the reaction, intensifying the green color development, thus enhancing the sensitivity of the method.
• A carousel incubator allows analysis overlap, yielding a capacity of 150 samples per hour.