Determination of oxybutinin chloride in pharmaceuticals by reversed-phase ion-pair liquid chromatography with two counter-ions in the eluent

Surface silanols in silica-bonded hydrocarbonaceous stationary phases

Klaas E. Bij, Csaba Horváth, Wayne R. Melander et al. · Journal of Chromatography A · 1981 · 423 citations

Natural Sciences, Chemical Engineering, Chemistry +14

Silanophilic interactions in reversed-phase high-performance liquid chromatography

Ernst Bayer, Aran Paulus · Journal of Chromatography A · 1987 · 59 citations

Natural Sciences, Biochemistry, Chemistry +11

Reversed-phase liquid chromatography for the separation of chlorpromazine, imipramine and some of their metabolites

Jenő Fekete, P. del Castilho, J.C. Kraak · Journal of Chromatography A · 1981 · 58 citations

Pharmacy, Pharmaceutical Analysis, Pharmacology +12

Separation of basic drug substances by reversed-phase high-performance liquid chromatography on dynamically modified silica and on bonded-phase materials

Steen Honoré Hansen, Per Helboe, Mogens Thomsen · Journal of Chromatography A · 1987 · 28 citations

Pharmacy, Pharmaceutical Analysis, Pharmaceutics +16

Polar contributions of the stationary phase to the reversed-phase ion-pair high-performance liquid chromatographic separation of quaternary ammonium drugs

J.A. De Schutter, P. De Moerloose · Journal of Chromatography A · 1988 · 25 citations

Pharmacy, Chemistry, Pharmaceutical Analysis +16