[Determination of urea in emulsion ointments].
1990
R Heyde, and
B zur Horst-Meyer, and
R Schwalbe
Zentralapotheke des Bereiches Medizin der Martin-Luther-Universität Halle-Wittenberg.
UI
MeSH Term
Description
Entries
D009824
Ointments
Semisolid preparations used topically for protective emollient effects or as a vehicle for local administration of medications. Ointment bases are various mixtures of fats, waxes, animal and plant oils and solid and liquid hydrocarbons.
Colloids formed by the combination of two immiscible liquids such as oil and water. Lipid-in-water emulsions are usually liquid, like milk or lotion. Water-in-lipid emulsions tend to be creams. The formation of emulsions may be aided by amphiphatic molecules that surround one component of the system to form MICELLES.
Emulsion
D014508
Urea
A compound formed in the liver from ammonia produced by the deamination of amino acids. It is the principal end product of protein catabolism and constitutes about one half of the total urinary solids.