a simple spectrophotometric assay for serum guanase based on the oxidation of 2,2'-azino-di ( 3-ethylbenzthiazoline-6-sulphate ) ( abts ) using xanthine oxidase , uricase and peroxidase is described and statistically examined through its application to normal and pathological sera .
C0030011
oxidation
C0027021
peroxidase