W. Beek

发表

Monitoring of veterinary drug residues by a combination of continuous flow techniques and column-switching high-performance liquid chromatography. I. Sulphonamides in egg, meat and milk using post-column derivatization with dimethylaminobenzaldehyde.

U. Brinkman, M. Aerts, W. Beek, 1988, Journal of chromatography.

On-line combination of dialysis and column-switching liquid chromatography as a fully automated sample preparation technique for biological samples. Determination of nitrofuran residues in edible products.

U. Brinkman, M. Aerts, W. Beek, 1990, Journal of chromatography.

Determination of residues of carbadox and some of its metabolites in swine tissues by high-performance liquid chromatography using on-line pre-column enrichment and post-column derivatization with UV-VIS detection.

U. Brinkman, M. Aerts, H. Keukens, 1988, Journal of chromatography.

Pharmacokinetics of Colistin A (Polymyxine El) in pigs after intra-arterial and oral administration of colistin sulphate

H. Keukens, M. Mengelers, W. Beek, 1997 .

Rapid sample preparation methods for analysis of residues of sulfamethazine and its N4-acetyl and desamino metabolites in swine tissue by HPLC.

M. Aerts, N. Haagsma, W. Beek, 1987, Biomedical chromatography : BMC.

High-performance liquid chromatographic screening and confirmation methods for chloramphenicol residues in meat with off-line cartridge sample clean-up and on-line diode array UV-VIS detection.

M. Aerts, H. Keukens, W. Beek, 1986, Journal of chromatography.

Determination of furazolidone residues in eggs by HPLC followed by confirmation with a diode-array UV/Vis detector

M. Aerts, W. Beek, 1985, Zeitschrift fur Lebensmittel-Untersuchung und -Forschung.

Ivermectin detection in serum of onchocerciasis patients: relationship to adverse reactions.

J. Oosting, A. Kijlstra, J. Stilma, 1995, The American journal of tropical medicine and hygiene.

Ivermectin pharmacokinetics in lactating sheep.

I. Grabnar, M. D. Košorok, H. Keukens, 2002, Veterinary parasitology.

Fully automated column-switching HPLC determination of aflatoxin M1 in milk using dialysis as sample preparation

W. Traag, M. Aerts, L. Tuinstra, 1989 .

Thermal and long-term freezing stability of ivermectin residues in sheep milk

H. Keukens, W. Beek, D. Doganoc, 2001 .

Fate of ivermectin residues in ewes' milk and derived products.

I. Rogelj, H. Keukens, B. Perko, 2004, The Journal of dairy research.

Analytical Strategy for the Regulatory Controlof Residues of Chloramphenicol in Meat: Preliminary Studiesin Milk

W. Traag, M. Aerts, H. Keukens, 1992 .

Residues of Ivermectin in sheep milk products

I. Rogelj, H. Keukens, B. Perko, 2000 .

Investigation into the excretion of nicarbazin in cows milk after administration of feeds containing low-levels of nicarbazin

E. Yedema, C. A. Kan, W. Beek, 2000 .

Plasma disposition, metabolism and residue aspects of flumequine and sodium salicylate in broilers after water medication

L. Hoogenboom, H. Keukens, J. Nouws, 1993 .