M. Hayer

The determination of oxalic acid in plasma and urine by means of capillary gas chromatography

B.G. Wolthers, M. Hayer · Clinica Chimica Acta · 1982 · 79 citations

Capillary Gas Chromatography, Oxalic Acid, Gas Chromatography +7

Development of a reference method for determining urinary oxalate by means of isotope dilution—mass spectrometry (ID-MS) and its usefulness in testing existing assays for urinary oxalate

W. Koolstra, B.G. Wolthers, M. Hayer et al. · Clinica Chimica Acta · 1987 · 40 citations

Urinary Oxalate, Urology, Urological Research +9

The determination of oxalate in haemodialysate and plasma: A means to detect and study ‘hyperoxaluria’ in haemodialysed patients

B.G. Wolthers, S. Meijer, T. Tepper et al. · Clinical Science · 1986 · 28 citations

Normal Oxalate Metabolism, Dialysis Therapy, Oxidative Stress +19

An improved high performance liquid chromatographic method for determining urinary oxalate, making use of an ID-MS reference method

W. Koolstra, B.G. Wolthers, M. Hayer et al. · Clinica Chimica Acta · 1987 · 22 citations

Urinary Oxalate, Urology, Biochemistry +10

Experimental device for electrokinetic micellar chromatography exploiting some components of capillary isotachophoresis instrumentation

Z. Prusík, Václav Kašička, S. Staněk et al. · Journal of Chromatography A · 1987 · 13 citations

Capillary Isotachophoresis Instrumentation, Capillary Electrophoresis, Biochemistry +12