Drug screening in biological fluids. The need for a systematic approachDE ZEEUW, R. A.Journal of chromatography. B, Biomedical sciences and applications. 1997, Vol 689, Num 1, pp 71-79, issn 1387-2273Article

Extensive gastrointestinal metabolic conversion limits the oral bioavailability of the dopamine D2 agonist N-0923 the oral bioavailability of the dopamine D2 agonist N-0923 in freely moving ratsSWART, P. J; DE ZEEUW, R. A.Pharmazie. 1992, Vol 47, Num 8, pp 613-615, issn 0031-7144Article

Transdermal drug delivery : efficacy and potential applications of the penetration enhancer azoneWIECHERS, J. W; DE ZEEUW, R. A.Drug design and delivery. 1989, Vol 6, Num 2, pp 87-100, issn 0884-2884Article

Different behavior toward muscarinic receptor binding between quaternary anticholinergics and their tertiary analoguesENSING, K; DE ZEEUW, R. A.Pharmaceutical research. 1986, Vol 3, Num 6, pp 327-332, issn 0724-8741Article

Intra- and inter-species comparisons of biliary metabolic profiles of butoprozine by high performance liquid chromatographyOVERZET, F; DE ZEEUW, R. A.Xenobiotica (London. Print). 1985, Vol 15, Num 1, pp 1-10, issn 0049-8254Article

Pre-incubation and low temperatures in quantitative radioreceptor assaysENSING, K; DE ZEEUW, R. A.Analytical letters. 1984, Vol 17, Num 14, pp 1647-1658, issn 0003-2719Article

Rapid micromethod for the analysis of mitotane and its metabolite in plasma by gas chromatography with electron-capture detectionBENECKE, R; VETTER, B; DE ZEEUW, R. A et al.Journal of chromatography. 1987, Vol 417, Num 2, pp 287-294, issn 0021-9673Article

Effect of purification followed by solubilization of receptor material on quantitative receptor assays for anticholinergic drugsSMISTEROVA, J; ENSING, K; DE ZEEUW, R. A et al.Journal of pharmaceutical and biomedical analysis. 1996, Vol 14, Num 11, pp 1425-1433, issn 0731-7085Article

Radioreceptor assays of ipratropium bromide in plasma and urineENSING, K; POL, M; DE ZEEUW, R. A et al.Journal of pharmaceutical and biomedical analysis. 1988, Vol 6, Num 5, pp 433-439, issn 0731-7085Article

Methodological aspects of quantitative receptor assaysSMISTEROVA, J; ENSING, K; DE ZEEUW, R. A et al.Journal of pharmaceutical and biomedical analysis. 1994, Vol 12, Num 6, pp 723-745, issn 0731-7085Article

Pharmacokinetics of the dopamine D2 agonist S(-)-2-(N-propyl-N2-thienylethylamino)-5-hydroxytetralin in freely moving ratsSWART, P. J; DE ZEEUW, R. A.Journal of pharmaceutical sciences. 1993, Vol 82, Num 2, pp 200-203, issn 0022-3549Article

Determination of carbisocaine, heptacaine and pentacaine in plasma by capillary gas chromatography with nitrogen-selective detectionMARKO, V; WIJSBEE, J; DE ZEEUW, R. A et al.Journal of pharmaceutical and biomedical analysis. 1986, Vol 4, Num 3, pp 333-340, issn 0731-7085Article

Solid phase extraction for multi-residue analysis of anabolic steroids and related substances from calf urine using C18 and alumina columnsKOOLE, A; FRANKE, J. P; DE ZEEUW, R. A et al.Journal of liquid chromatography & related technologies. 1999, Vol 22, Num 17, pp 2627-2650, issn 1082-6076Article

Improved benzodiazepine radioreceptor assay using the MultiScreen® Assay SystemJANSSEN, M. J; ENSING, K; DE ZEEUW, R. A et al.Journal of pharmaceutical and biomedical analysis. 1999, Vol 20, Num 5, pp 753-761, issn 0731-7085Article

Glucuronidation of labetalol at the two hydroxy positions by bovine liver microsomes : isolation, purification, and structure elucidation of the glucuronides of labetalolNIEMEIJER, N. R; GERDING, T. K; DE ZEEUW, R. A et al.Drug metabolism and disposition. 1991, Vol 19, Num 1, pp 20-23, issn 0090-9556, 4 p.Article

Impact of urine matrix and isolation procedure on retention behaviour of basic drugs in thin-layer chromatographyFRANKE, J. P; DE ZEEUW, R. A; WIJBEEK, J et al.Journal of pharmaceutical and biomedical analysis. 1988, Vol 6, Num 4, pp 415-420, issn 0731-7085Article

Potentials of wide-bore fused silica capillary columns for substance identification by means of retention indicesFRANKE, J. P; DE ZEEUW, R. A; WIJSBEEK, J et al.Journal of analytical toxicology. 1986, Vol 10, Num 4, pp 132-134, issn 0146-4760Article

Potential and pitfalls of chromatographic techniques and detection modes in substance identification for systematic toxicological analysisDE ZEEUW, R. A; HARTSTRA, J; FRANKE, J. P et al.Chromatography and electrophoresis in forensic analysis. Journal of chromatography. A. 1994, Vol 674, Num 1-2, pp 3-13Book Chapter

Interlaboratory survey of the quality of urinary arsenic and thallium assays in the European communityDE ZEEUW, R. A; FRANKE, J. P; STAMM, D et al.Journal of clinical chemistry and clinical biochemistry. 1987, Vol 25, Num 6, pp 351-355, issn 0340-076XArticle

Fluorescent-labeled ligands for the benzodiazepine receptor. Part 2 : The choice of an optimal fluorescent-labeled ligand for benzodiazepine receptor assaysJANSSEN, M. J; ENSING, K; DE ZEEUW, R. A et al.Pharmazie. 2000, Vol 55, Num 2, pp 102-106, issn 0031-7144Article

Standardization procedure for the in vitro skin permeation of anticholinergicsBOSMAN, I. J; ENSING, K; DE ZEEUW, R. A et al.International journal of pharmaceutics. 1998, Vol 169, Num 1, pp 65-73, issn 0378-5173Article

Plasma level monitoring of mitotane (o,p'-DDD) and its metabolite (o,p'-DDE) during long-term treatment of Cushing's disease with low dosesBENECKE, R; KELLER, E; VETTER, B et al.European journal of clinical pharmacology. 1991, Vol 41, Num 3, pp 259-261, issn 0031-6970Article

Chemical transformation to avoid interference in the analyses of DDT-type compounds and polychlorinated biphenyls in medicinal plantsBENECKE, R; BROTKA, J; WIJSBEEK, J et al.HRC & CC. Journal of high resolution chromatography & chromatography communications. 1985, Vol 8, Num 1, pp 30-31, issn 0344-7138Article

Multi-residue analysis of anabolics in calf urine using high-performance liquid chromatography with diode-array detectionKOOLE, A; FRANKE, J.-P; DE ZEEUW, R. A et al.Journal of chromatography. B, Biomedical sciences and applications. 1999, Vol 724, Num 1, pp 41-51, issn 1387-2273Article

Selection and evaluation of anticholinergics for transdermal drug deliveryBOSMAN, I. J; ENSING, K; DE ZEEUW, R. A et al.International journal of pharmaceutics. 1998, Vol 169, Num 1, pp 75-82, issn 0378-5173Article