Searched for: subject:"Determinants"
(1 - 4 of 4)
document
Blankvoort, B.M.G. (author), Aarts, J.M.M.J.G. (author), Schilt, R. (author), Geerdink, P. (author), Spenkelink, B. (author), Rodenburg, R.J.T. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
Despite a ban by the European Union, the use of anabolic steroids and repartitioning agents in cattle is still occasionally observed. Due to continuing improvements in analytical techniques, very low detection limits for individual compounds have been achieved. In response to these developments, cocktails composed of several steroids have been...
article 2003
document
Mol, H.G.J. (author), van Dam, R.C.J. (author), Vreeken, R.J. (author), Steijger, O.M. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
A straightforward and efficient method was developed for the determination of intact daminozide in apples and apple leaves. After extraction with methanol and a clean-up step using a graphitized carbon cartridge, the extract was analysed by ion-trap liquid chromatography-tandem mass spectrometry (LC-MS-MS) using atmospheric pressure chemical...
article 1999
document
van Puymbroeck, M. (author), Kuilman, M.E.M. (author), Maas, R.F.M. (author), Witkamp, R.F. (author), Leyssens, T. (author), van der Zande, D.J.M. (author), Gelan, J. (author), Raus, J. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
Current veterinary residue analysis mainly focuses on the monitoring of residues of the administered parent compound. However, it is possible that larger amounts of metabolites are excreted and that they can have a prolonged excretion period. In order to unravel specific metabolic steps and to identify possible biological markers, two in vitro...
article 1998
document
Elliott, C.T. (author), Baxter, G.A. (author), Hewitt, S.A. (author), Arts, C.J.M. (author), van Baak, M. (author), Hellenäs, K.-E. (author), Johannson, A. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
The drug salbutamol (SBL) is a β-agonist that may be used illegally as an animal growth promoter. SBL is also a good example of a drug which is excreted in the form of glucuronides and sulfates. Such metabolites cause complexities in analysing for the presence of drug residues. In the majority of cases a process of deconjugation and sample clean...
article 1998
Searched for: subject:"Determinants"
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