H. Keukens

发表

Procedure for the gas chromatographic-mass spectrometric confirmation of some exogenous growth-promoting compounds in the urine of cattle.

W. Traag, L. Tuinstra, H. Keukens, 1983, Journal of Chromatography A.

Application of an enzyme immunoassay for the determination of sulphamethazine (sulphadimidine) residues in swine urine and plasma and their use as predictors of the level in edible tissue.

W. Haasnoot, H. Keukens, J. Nouws, 1996, Food additives and contaminants.

Determination of residues of carazolol and a number of tranquilizers in swine kidney by high-performance liquid chromatography with ultraviolet and fluorescence detection.

M. Aerts, H. Keukens, 1991, Journal of chromatography.

Immunochemical detection of aminoglycosides in milk and kidney.

P. Stouten, A. Lommen, W. Haasnoot, 1999, The Analyst.

Development and validation of a method for the determination of sub-additive levels of virginiamycin in compound animal feeds by liquid chromatography.

J. de Jong, J. Lasaroms, H. Keukens, 2001, The Analyst.

Comparison of ten digestion procedures for the determination of arsenic in soils by hydride-generation atomic absorption spectrometry

H. Keukens, N. V. Veen, G. Vos, 1985 .

Quantitative determination of specified chlorobiphenyls in fish with capillary gas chromatography and its use for monitoring and tolerance purposes.

W. Traag, L. Tuinstra, H. Keukens, 1983, International Journal of Environmental Analytical Chemistry.

Testing of raw milk for tetracycline residues.

H. Keukens, J. Nouws, H. V. Egmond, 1998, Journal of dairy science.

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 .

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.

Flubendazole residues in eggs after oral administration to laying hens: determination with reversed phase liquid chromatography.

H. Keukens, C. A. Kan, M. Tomassen, 1998, The Analyst.

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.

Suitability of the Charm HVS and a microbiological multiplate system for detection of residues in raw milk at EU maximum residue levels.

H. Keukens, J. Nouws, J. Schouten, 1999, The Veterinary quarterly.

Ivermectin residues in eggs of laying hens and in muscle and liver of broilers after administration of feeds containing low levels of ivermectin

J. V. Rhijn, H. Keukens, C. A. Kan, 2000 .

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.

Plasma disposition of flumequine in common carp (Cyprinus carpio L., 1758), African catfish (Clarias gariepinus Burchell, 1822) and European eel (Anguilla anguilla L., 1758) after a single peroral administration

H. Keukens, M. Mengelers, J. Boon, 1994 .

Polymyxin E-1 (colistin sulphate) (neuro-)intoxication in young ostriches ( Struthio camelus spp.)

W. Landman, B. Berendsen, H. Keukens, 2000, Avian Pathology.

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 .

Screening of chloramphenicol in urine, tissue, milk and eggs in consequence of the prohibiti ve regulation

P. Stouten, W. Haasnoot, H. Keukens, 1996 .

Nicarbazin residues in broiler muscle, liver and litter/faeces. early exposure or recirculation

H. Keukens, C. A. Kan, E. Boers, 1996 .

The stability of some veterinary drugs and coccidiostats during composting and storage of laying hen and broiler faeces

H. Keukens, J. V. Dijk, 2000 .

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

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