Zobrazeno 1 - 10
of 40
pro vyhledávání: '"O.A.G.J. van der Houwen"'
Autor:
C. Sluiter, Auke Bult, Willy J. M. Underberg, Ed Hop, J. J. Kettenes-van den Bosch, O.A.G.J. van der Houwen
Publikováno v:
International Journal of Pharmaceutics. 185:227-235
Clanfenur belongs to a new group of substituted benzoylphenylureas. The drug shows both in vitro and in vivo antitumour activity. To assess its chemical stability, a study was carried out in which the effect of pH, temperature, ionic strength and buf
Autor:
Wim E. Hennink, M.J. van Steenbergen, O.A.G.J. van der Houwen, Nicolaas J. Zuidam, Willy J. M. Underberg, P. Van De Wetering
Publikováno v:
Macromolecules. 31:8063-8068
The hydrolytic stability of poly(2-(dimethylamino)ethyl methacrylate) was investigated and compared with the stability of its monomer 2-(dimethylamino)ethyl methacrylate (DMAEMA), with 2-(dimethylamino)ethyl isobutyrate (DMAEIB), representing the rep
Publikováno v:
International Journal of Pharmaceutics. 155:137-152
In this study we discuss the application of the general models for pH degradation profiles for specific acid, solvent and base catalysis, both in the absence and presence of ligands, and for the general acid and base catalysis, that we have published
Autor:
Willy J. M. Underberg, O.A.G.J. van der Houwen, Otto Bekers, Auke Bult, Jos H. Beijnen, S.C.M. Lubbers
Publikováno v:
International Journal of Pharmaceutics. 112:97-101
The degradation kinetics of LL-D49194α1 were studied over the pH region 1–13. The contribution of the buffering agents to the degradation has been analyzed using appropriate model equations.
Autor:
Auke Bult, O.A.G.J. van der Houwen, Jan Teeuwsen, Jos H. Beijnen, Otto Bekers, Willy J. M. Underberg
Publikováno v:
International Journal of Pharmaceutics. 105:249-254
The degradation kinetics of 7- N -( p -hydroxyphenyl)mitomycin C in the presence of cyclodextrin have been investigated over the pH region 0.3–11. Degradation mixtures were analysed by means of UV-Vis spectrometry and high-performance liquid chroma
Autor:
Auke Bult, Jos H. Beijnen, R.M.J. Goossen, Otto Bekers, Willy J. M. Underberg, O.A.G.J. van der Houwen
Publikováno v:
International Journal of Pharmaceutics. 99:73-78
The degradation kinetics of the nitrosourea derivative nimustine has been investigated over the H0/pH region −1 to 11 at 25°C. The stability tests were performed using a stability-indicating high-performance liquid chromatographic assay. The first
Publikováno v:
International Journal of Pharmaceutics. 89:R5-R7
Publikováno v:
Journal of Chromatography A. 209:393-404
Breakthrough patterns of eluents containing tetrabutylammonium or cetyltrimethylammonium ions (two frequently used ion-pairing agents in high-performance liquid chromatography) have been studied, using reversed-phase columns with octadecyl chains per
Publikováno v:
International Journal of Pharmaceutics. 45:189-196
The degradation kinetics of a new mitomycin derivative, 7-N-(p-hydroxyphenyl)mitomycin C (M-83), have been investigated over the H0/pH region - 1 to 13. Degradation mixtures were analyzed by means of UV-vis spectrophotometry and high-performance liqu
Autor:
H.G. Kerkdijk, Auke Bult, Jos H. Beijnen, Willy J. M. Underberg, J.J.M. Holthuis, A.C.A. Paalman, O.A.G.J. van der Houwen
Publikováno v:
International Journal of Pharmaceutics. 41:169-178
The chemical stability of the anticancer drug etoposide in aqueous solution has been investigated utilizing a stability-indicating reversed-phase high-performance liquid Chromatographie assay with ultraviolet detection. The degradation processes can