Bert Ooms

Selective Isolation at the Femtomole Level of Phosphopeptides from Proteolytic Digests Using 2D-NanoLC-ESI-MS/MS and Titanium Oxide Precolumns

Martijn W. H. Pinkse, Pauliina M. Uitto, Martijn Hilhorst et al. · Analytical Chemistry · 2004 · 890 citations

Life Sciences, Biochemistry, Biotechnology +15

Profiling of Tryptophan-related Plasma Indoles in Patients with Carcinoid Tumors by Automated, On-Line, Solid-Phase Extraction and HPLC with Fluorescence Detection

Ido P. Kema, Wim G. Meijer, Gert Meiborg et al. · Clinical Chemistry · 2001 · 100 citations · Full text

Medicine, Biochemistry, Oncology +17

High throughput therapeutic drug monitoring of clozapine and metabolites in serum by on-line coupling of solid phase extraction with liquid chromatography–mass spectrometry

H.A.G. Niederländer, Emile Hermannus Maarten Koster, Martijn Hilhorst et al. · Journal of Chromatography B · 2006 · 65 citations

Pharmacy, Pharmacokinetics, Pharmacology +17

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

Generic solid phase extraction–liquid chromatography–tandem mass spectrometry method for fast determination of drugs in biological fluids

Anniek Schellen, Bert Ooms, Dick van de Lagemaat et al. · Journal of Chromatography B · 2003 · 55 citations

Pharmacy, Pharmaceutical Analysis, Pharmacology +12