Enzyme reagent, kit, and method for determination of blood phenylalanine.

摘要

An enzyme reagent, a kit, and a method for determining phenylalanine in blood with use of a dried blood spot and a microwell used in mass-screening of newborns or infants are disclosed. The enzyme reagent comprises phenylalanine dehydrogenase; the kit comprises said enzyme reagent, said microwell, a reagent for extraction of blood components, and a reagent for quantification of phenylalanine; and the method comprises specifically extracting phenylalanine from blood and determining the phenylalanine with use of said enzyme reagent.