R. Schoenmaker

Chronopharmacokinetics of theophylline after sustained release and intravenous administration to adults

JHG Jonkman, WJV van der Boon, LP Balant et al. · European Journal of Clinical Pharmacology · 1984 · 36 citations

Sustained Release, Intravenous Administration, Antibiotics +4

A new in vitro dissolution test for controlled-release theophylline tablets

J. H. G. Jonkman, R. Schoenmaker, N. Grimberg et al. · International Journal of Pharmaceutics · 1981 · 36 citations

Pharmaceutical Science, Medicine, Vitro Dissolution Test +4

Rapid and selective theophylline serum and saliva assay by means of high pressure liquid chromatography

J. H. G. Jonkman, R. Schoenmaker, J. E. Greying et al. · Pharmacy World & Science · 1980 · 27 citations

Allergy, Medicine, Bioanalysis +6

Disposition and clinical pharmacokinetics of microcrystalline theophylline

J. H. G. Jonkman, W. Chr. Berg, R. Schoenmaker et al. · European Journal of Clinical Pharmacology · 1980 · 24 citations

Pharmaceutical Science, Pharmacology, Clinical Pharmacokinetics +3

Determination of amoxycillin in plasma by ion pair column extraction and reversed-phase ion pair high-performance liquid chromatography

J. H. G. Jonkman, R. Schoenmaker, J. Hempenius · Journal of Pharmaceutical and Biomedical Analysis · 1985 · 20 citations

Biochemistry, Separation Science, Medicine +6