King-Armstrong unit

King u·nit

(king),
the quantity of phosphatase that, acting on disodium phenylphosphate in excess, at pH 9 for 30 minutes, liberates 1 mg of phenol.
Synonym(s): King-Armstrong unit

King,

Earl J., Canadian biochemist, 1901-1962.
King-Armstrong unit - Synonym(s): King unit
King unit - the quantity of phosphatase that, acting upon disodium phenylphosphate in excess, at pH 9 for 30 minutes, liberates 1 mg of phenol. Synonym(s): King-Armstrong unit

King-Armstrong unit

a unit of measurement of phosphatase; one unit equals 1 mg phenol liberated in 30 min at 100°F (37.5°C) and pH 9. Now largely replaced by International Units.