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Xanthine oxidase from buttermilk min. 0.9 U/mg protein, SERVA Electrophoresis
Suspension (XOD, Xanthine:oxygen oxidoreductase)
EC 1.1.3.22 • Mw ca. 283 000 •
For the determination of xanthine and hypoxanthine (1), adenosine, guanosine (2) and total purines (3). Chromatographically purified; ca. 10 mg/ml in 60 % saturated ammonium sulfate containing sodium salicylate and EDTA.
5 mg correspond to approx. 0.5 ml, 25 mg correspond to approx. 2.5 ml.
Unit definition: 1 U catalyzes the oxidation of 1 µmole xanthine per minute at 25 °C, pH 7.5, measured by the increase in absorbance in 290 nm (4).
Storage Temperature: +2 °C to +8 °C
HS: 35079090
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