Zobrazeno 1 - 10
of 11
pro vyhledávání: '"R. D. van Ooijen"'
Publikováno v:
Macromolecules. 32:2896-2902
The enzymatic degradation of intramolecularly polymerized methacrylated dextran [dex-poly(MA)] and hydrogels based on methacrylated dextran was studied. Dex-poly(MA) was synthesized as a soluble model compound to investigate the enzymatic degradation
Publikováno v:
Macromolecules. 30:7408-7413
Dextran and methacrylated dextrans (dex-MA) were degraded with dextranase, and the formed degradation products were characterized by electrospray mass spectrometry. It was shown that the main degra...
Publikováno v:
Journal of Chromatographic Science. 34:13-19
An enantioselective gas chromatographic-mass spectrometric assay is developed for alprenolol and its metabolite, 4-hydroxy-alprenolol, in saliva and plasma. The procedure is based on a two-step derivatization technique with N-heptafluorobutyryl-l-pro
Publikováno v:
Journal of Mass Spectrometry. 30:505-510
Publikováno v:
Journal of Mass Spectrometry. 30:497-504
Tandem mass spectrometric methods for the identification of 19-norandrosterone (3α-hydroxy-5α-estran-17-one) are described and evaluated. The fragmentation reactions of the heptafluorobutyryl (HFB) and pentafluorobenzyloxime heptafluorobutyryl (PFB
Publikováno v:
Journal of pharmaceutical and biomedical analysis. 31(3)
A gas chromatography/mass spectrometry (GC/MS) method for the quantification of para-fluorofentanyl (pFF) in powder and powdered samples was developed and validated. The method was applied on a seizure of capsules and tablets, that had been confiscat
Autor:
D. de Boer, Roel H. Fokkens, J.H.H. Thijssen, Robert A. A. Maes, R. D. Van Ooijen, Nico M. M. Nibbering, D.H. van de Kerkhof, Jan W. Zwikker
Publikováno v:
Journal of chromatography A, 954(1-2), 199-206. Elsevier
Trimethylsilylation of target substances in a mixture of N-methyl-N-trimethylsilyltrifluoroacetamide (MSTFA), ammonium iodide and ethanethiol is frequently applied for the application of gas chromatography–mass spectrometry (GC–MS) in steroid ana
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97b5f717914867b3c5537d63c4e24b5d
https://research.utwente.nl/en/publications/e31f391d-e7c8-4265-b650-003bdf5b6234
https://research.utwente.nl/en/publications/e31f391d-e7c8-4265-b650-003bdf5b6234
Autor:
Tom B. Vree, A Swolfs, C.P.W.G.M. Verwey-van Wissen, Peter Joseph Jongen, O.R. van Eikema Hommes, Robert A. A. Maes, R. D. Van Ooijen, A.J. Lagerwerf
Publikováno v:
Journal of Chromatography. B, 726, 157-168
Journal of Chromatography. B, 726, pp. 157-168
Journal of Chromatography. B, 726, pp. 157-168
In the present study metabolites of methylprednisolone were detected using gradient elution high-performance liquid chromatography. Separation was performed by a Cp Spherisorb ODS 5 μm (250 mm×4.6 mm I.D.) column, connected to a guard column, packe
Publikováno v:
Therapeutic Drug Monitoring. 17:414
Autor:
D. M. Barends, H. Lingeman, W. van der Doelen, W. M. J. Beek, H. J. Keukens, M. M. L. Aerts, J. H. Beijnen, R. J. Driebergen, T. J. M. Hodes, J. J. M. Holthuis, D. N. Reinhoudt, W. J. M. Underberg, A. Dams, G. de Groot, D. J. de Wildt, J. J. M. Lansemeyer, B. Sangster, L. Delbressine, M. Moonen, M. v. Oosterhout, G. Wagenaars, F. Kaspersen, M. De Smet, S. Van Belle, C. Storme, D. L. Massart, H. A. J. de Waal, J. C. Kraak, F. J. M. J. Haessen, S. M. Dreijer-van der Glas, A. Bult, B. F. H. Drenth, K. J. Hellingwerf, J. den Hartigh, J. S. Blauw, J. H. Beljnen, W. J. van Oort, S. J. Postma, W. Verboom, P. Lelieveid, R. H. Drost, R. D. van Ooijen, T. I. Ionescu, J. M. van Rossum, R. A. A. Maes, F. Elferink, W. J. F. van der Vijgh, I. Klein, H. M. Pinedo, N. Haagsma, B. Dieleman, B. G. M. Gortemaker, C. van de Water, M. J. B. Mengelers, C. Schreuder, A. Hulshoff, P. L. Jacobs, G. J. H. Scnmeits, H. Nieuwenhuyse, J. Vink, H. Jansen, E. G. van der Velde, U. A. Th. Brinkman, R. W. Frei, H. Veening, W. Th. Kok, W. H. Voogt, P. H. Kuijpers, J. Zeeman, G. J. de Jong, G. Musch, Frits A. J. Muskiet, N. M. M. Nibbering, H. J. E. M. Reeuwijk, U. R. Tjaden, L. G. C. Spanjers, J. P. de Kleijn, H. C. Kerkdijk, Gerrit L. M. van de Laar, Jan E. Paanakker, O. A. G. J. van der Houwen, J. Teeuwsen, J. v. Gorp, P. Salemink, M. Vermeulen, L. Kolkman, G. W. Welling, R. van der Zee, S. Wellinq-Wester, J. van der Greef
Publikováno v:
Pharmaceutisch Weekblad. 7:285-292