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Journal of Analytical Toxicology|January 1, 1988
Systematic analysis of solvents and other volatile substances by gas chromatographyJ P Franke, J Wijsbeek, R A de Zeeuw, et al.
Journal of Analytical Toxicology|November 1, 1993
Pitfalls and solutions in the development of a fully automated solid-phase extraction method for drug screening purposes in plasma and whole bloodX H Chen, J P Franke, K Ensing, et al.
Pharmaceutisch Weekblad. Scientific Edition|October 22, 1982
Metabolism and excretion of the quaternary ammonium compound thiazinamium methylsulfate (Multergan) in man. II. Oral and rectal administrationJ H Jonkman, J Wijsbeek, R A De Zeeuw, et al.
Clinical Pharmacology and Therapeutics|April 1, 1977
Variations in the bioavailability of thiazinamium methylsulfateJ H Jonkman, L E Van Bork, J Wijsbeek, et al.
Die Pharmazie|July 1, 1986
[Plant drugs with residues of organochlorine compounds. 2. Identification of residues of DDT and its analogs by comparison of gas chromatography on packed and capillary columns and GC/MS coupling]R Benecke, J Brotka, J Wijsbeek, et al.
Die Pharmazie|February 1, 1988
[Analysis of residues of organochlorine compounds in plant drugs. 3. Identification of residues of polychlorobiphenyl compounds by comparison of gas chromatography on packed and capillary columns and GCMS coupling]R Benecke, J Brotka, J Wijsbeek, et al.
Science (New York, N.Y.)|February 18, 1972
Cannabinoids with a propyl side chain in cannabis: occurrence and chromatographic behaviorR A de Zeeuw, J Wijsbeek, D D Breimer, et al.
Pharmaceutisch Weekblad. Scientific Edition|October 22, 1982
Metabolism and excretion of the quaternary ammonium compound thiazinamium methylsulfate (Multergan) in man. I. Parenteral administrationJ H Jonkman, J Wijsbeek, R A De Zeeuw, et al.
International Journal of Clinical Pharmacology, Therapy, and Toxicology|September 1, 1983
Clinical pharmacokinetics of intramuscular thiazinamium methyl sulfateJ H Jonkman, L E Van Bork, B Calvert, et al.
The Journal of Pharmacy and Pharmacology|November 1, 1975
Determination of low cencentrations of the quaternary ammonium compound thiazinamium methylsulphate in plasma and urineJ G Jonkman, J Wijsbeek, S Hollenbeek, et al.
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