Fluorometric determination of hypoxanthine and xanthine in biological fluids by high-performance liquid chromatography using enzyme reactors

An Analytical System for Rapid Separation of Tissue Nucleotides at Low Pressures on Conventional Anion Exchangers

1975 • 534 citations

Substrates for the fluorometric determination of oxidative enzymes

1968 • 427 citations

Metabolic studies of allopurinol, an inhibitor of xanthine oxidase

1966 • 327 citations

Homovanillic acid as a fluorometric substrate for oxidative enzymes. Analytical applications of the peroxidase, glucose oxidase, and xanthine oxidase systems

1968 • 252 citations

High-performance liquid chromatographic methods for base and nucleoside analysis in extracellular fluids and in cells

1981 • 153 citations

Identification and quantitation of nucleosides, bases and other UV-absorbing compounds in serum, using reversed-phase high-performance liquid chromatography

1979 • 140 citations

Simultaneous liquid chromatography of 5-fluorouracil, uridine, hypoxanthine, xanthine, uric acid, allopurinol, and oxipurinol in plasma.

1980 • 122 citations

Determination of selected pyrimidines, purines and their metabolites in serum and urine by reversed-phase ion-pair chromatography

1980 • 100 citations

High-performance liquid chromatographic determination of hypoxanthine and xanthine in biological fluids

1982 • 49 citations

Reverse phase partition HPLC for determination of plasma purines and pyrimidines in subjects with gout and renal failure

1980 • 44 citations

A rapid and sensitive fluorimetric assay for adenosine, inosine, and hypoxanthine

1979 • 44 citations

Simultaneous analysis of substrates, products, and inhibitors of xanthine oxidase by high-pressure liquid chromatography and gas chromatography

1979 • 30 citations

The mass-spectrometric identification of hypoxanthine and xanthine (‘oxypurines’) in skeletal muscle from two patients with congenital xanthine oxidase deficiency (xanthinuria)

1969 • 27 citations

Simultaneous Measurement of Plasma and Erythrocyte Oxypurines

1972 • 15 citations

Specific simultaneous assay of hypoxanthine and xanthine in serum by reversed-phase high-performance liquid chromatography using an immobilized xanthine oxidase reactor

1982 • 15 citations

SIMULTANEOUS DETERMINATION OF HYPOXANTHINE, XANTHINE AND URIC ACID USING AN IMMOBILIZED XANTHINE OXIDASE BY HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY

1981 • 10 citations

Determination of kinetic parameters for immobilized xanthine oxidase and its application to a post-column enzyme reactor in high-performance liquid chromatographic analysis of hypoxanthine, xanthine and uric acid.

1982 • 10 citations

Fluorometric determination of xanthine and hypoxanthine in tissue

1979 • 5 citations