The Wesco 4420 Colloid Osmometer gives rapid measurement of colloid osmotic pressure (COP). This is of vital importance in monitoring therapy prescribed during pregnancy, pulmonary edema, hyperalimentation, burn injury, liver disease, and nephrotic syndrome.

The instrument uses a semi-permeable membrane dividing the sample and reference chambers to simulate the role of the natural vascular membrane in the establishment of osmotic pressure responsible for water flow between interstitial fluid and blood.

The Wescor 5520 Vapro osmometer brings unprecedented simplicity, convenienace, and accuracy to the determination of osmolality for the clinical laboratory and for researchers.

The instrument is capable of producing high precsion values on 10 microliters of a wide range of solutions from biological and industrial sources. It is especially valuable in research and in the speedy and simple provision of essential osmolality data in Clinical Chemistry.