
Xanthine oxidoreductase activity assay in tissues using stable isotope-labeled substrate and liquid chromatography high-resolution mass spectrometry
Keywords: XDH، زانتین دهیدروژناز; XOR, xanthine oxidoreductase; LC, liquid chromatography; HRMS, high-resolution mass spectrometry; UA, uric acid; UV, ultraviolet; FL, fluorescence; XDH, xanthine dehydrogenase; XO, xanthine oxidase; IXP, isoxanthopterin; ISTD, internal standard; LLOQ, low