title: [Determination of aryl esterase activity in the human serum using 4-nitrophenyl acetate].
abstract: A new determination of esterases and arylesterases (E. C. 3.1.1.2.) with 4-nitrophenylacetate is described. The results are compared with those of the method described by Pilz using phenylacetate. 4-nitrophenylacetate instead of phenylacetate allows a kinetic reaction. The precision of the determination is good, the method easy to handle. Normal values: 1100--2600 U/1 (total esterases), 700--2100 U/1 (arylesterases) at +25 degrees C.
mesh_terms: D000085:Acetates; D002265:Carboxylic Ester Hydrolases / Q000097:blood*; D055598:Chemical Phenomena; D002621:Chemistry; D006801:Humans; D006868:Hydrolysis; D009596:Nitrophenols
chemical_list: D000085:Acetates; D009596:Nitrophenols; D002265:Carboxylic Ester Hydrolases
vernacular_title: Zur Bestimmung der Arylesteraseaktivität im menschlichen Serum mit 4-Nitrophenylazetat