Sample preparation using bonded silica: Recent experiences and new instrumentation

Reversed-phase ion-pair chromatography of antidepressive and neuroleptic amines and related quaternary ammonium compounds

Karl‐Gustav Wahlund, A. Sokołowski · Journal of Chromatography A · 1978 · 104 citations

Medicine, Medicinal Chemistry, Pharmacology +12

Liquid—solid sample preparation in drug analysis

R.D. McDowall, J.C. Pearce, G.S. Murkitt · Journal of Pharmaceutical and Biomedical Analysis · 1986 · 91 citations

Pharmacy, Pharmaceutical Analysis, Pharmaceutics +12

Immunoaffinity pre-column for selective on-line sample pre-treatment in high-performance liquid chromatography determination of 19-nortestosterone

A. Farjam, Gerhardus J. de Jong, R.W. Frei et al. · Journal of Chromatography A · 1988 · 79 citations

Pharmacy, Pharmaceutics, Analytical Chemistry +15

Reversed-phase ion-pair chromatography of drugs and related organic compounds

Ingvar Johansson, Karl‐Gustav Wahlund, G Schill · Journal of Chromatography A · 1978 · 75 citations

Pharmacy, Chemistry, Pharmaceutical Analysis +14

Fully automated sample handling system for liquid chromatography based on pre-column technology and automated cartridge exchange

Michel W. F. Nielen, A. J. Valk, R.W. Frei et al. · Journal of Chromatography A · 1987 · 64 citations

Pharmacy, Chemistry, Pharmaceutics +14