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- van Veen, S. (author), TNO Voeding (author) article 2003
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- de Vrijer, F. (author), TNO Voeding (author) article 2003
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- Mol, H.G.J. (author), TNO Voeding (author) article 2003
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- Venema, K. (author), Nesselrooij, J. (author), Lamers, R.J. (author), van de Sandt, H. (author), TNO Voeding (author) article 2003
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Artola-Garicano, E. (author), Hermens, J.L.M. (author), Vaes, W.H.J. (author)In the current study, predictions by Simple Treat 3.0, a fate model for organic chemicals in sewage treatment plants (STPs), are compared with actual measurements in three STPs. Two polycyclic musks, Tonalide® (AHTN) and Galaxolide® (HHCB), were used for model evaluation. Results show that Simple Treat 3.0 is able to predict the removal...article 2003
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Helmroth, I.E. (author), Dekker, M. (author), Hankemeier, Th. (author)This article describes the simultaneous diffusion of a migrant and a solvent in low density polyethylene (LDPE). The migrant (Irganox 1076) moves out of the slab, while the solvent (isooctane, n-heptane or cyclohexane) moves inwards. Solvent absorption was measured separately by following the increase of the mass of the slab in time. It can be...article 2003
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Mol, H.G.J. (author), van Dam, R.C.J. (author), Steijger, O.M. (author), TNO Voeding (author)A method based on liquid chromatography (LC)-mass spectrometry (MS)/MS was developed for sensitive determination of a number of less gas chromatography (GC)-amenable organophosphorus pesticides (OPs; acephate, methamidophos, monocrotophos, omethoate, oxydemeton-methyl and vamidothion) in cabbage and grapes. For extraction, several solvents were...article 2003
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- Bro, R. (author), Smilde, A.K. (author), TNO Voeding (author) article 2003
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- Derks, E.P.P.A. (author), Westerhuis, J.A. (author), Smilde, A.K. (author), King, B.M. (author), TNO Voeding (author) article 2003
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- Vermeulen, M. (author), van Rooijen, H.J.M. (author), Vaes, W.H.J. (author), TNO Voeding (author) article 2003
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TNO Voeding Centraal Instituut voor Voedingsonderzoek TNO (author), Loke, M.L. (author), Jespersen, S. (author), Vreeken, R. (author), Halling-Sørensen, B. (author), Tjørnelund, J. (author)This paper describes the development of a HPLC-MS-MS (ESI) method with baseline separation of oxytetracycline, 4-epi-oxytetracycline, α-apo-oxytetracycline and β-apo-oxytetracycline using an XTerra column and an MeOH-MilliQ-water (containing 8 mM formic acid) mobile phase. Limits of quantification for aqueous standards were in the range of 0.004...article 2003
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Artola-Garicano, E. (author), Borkent, I. (author), Damen, K. (author), Jager, T. (author), Vaes, W.H.J. (author)In the current study, a new method is introduced with which the rate-limiting factor of biodegradation processes of hydrophobic chemicals in organic and aqueous systems can be determined. The novelty of this approach lies in the combination of a free concentration-based kinetic model with measurements of both free and total concentrations in...article 2003
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- Cruz, S.C. (author), Aarnoutse, P.J. (author), Rothenberg, G. (author), Westerhuis, J.A. (author), Smilde, A.K. (author), Bliek, A. (author), TNO Voeding (author) article 2003
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't Hart, B.A. (author), Vogels, J.T.W.E. (author), Spijksma, G. (author), Brok, H.P.M. (author), Polman, C. (author), van der Greef, J. (author), Primatencentrum TNO (author)Proton nuclear magnetic resonance (1H-NMR) spectroscopy in combination with pattern recognition techniques were used to investigate the composition of organic compounds in urines from patients with multiple sclerosis (MS), patients with other neurological diseases (OND) and healthy controls (H). Using a valid animal model of MS, namely the...article 2003
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- Jellema, R.H. (author), Louwerse, D.J. (author), Smilde, A.K. (author), Gerritsen, M.J.P. (author), Guldemond, D. (author), van der Voet, H. (author), Vereijken, P.F.G. (author), TNO Voeding (author) article 2003
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Poelmans, S. (author), de Wasch, K. (author), de Brabander, H.F. (author), van de Wiele, M. (author), Courtheyn, D. (author), van Ginkel, L.A. (author), Sterk, S.S. (author), Delahaut, Ph. (author), Dubois, M. (author), Schilt, R. (author), Nielen, M. (author), Vercammen, J. (author), Impens, S. (author), Stephany, R. (author), Hamoir, T. (author), Pottie, G. (author), van Poucke, C. (author), van Peteghem, C. (author)In sports doping, as well in man as in horseracing, stanozolol (Stan) was abused and became the subject of metabolism research. Also in veterinary practice, stanozolol became an important misused anabolic steroid. Like most other anabolic steroids, stanozolol has poor gas chromatographic behavior. It is difficult to detect in urine, because of...article 2002
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- Dröge, J.B.M. (author), Rinsma, W.J. (author), van 't Klooster, H.A. (author), Tas, A.C. (author), van der Greef, J. (author), Centraal Instituut voor Voedingsonderzoek TNO (author) article 1987
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- van der Greef, J. (author), Nijssen, L.M. (author), Maarse, H. (author), ten Noever de Brauw, M.C. (author), Games, D.E. (author), Alcock, N.J. (author), Centraal Instituut voor Voedingsonderzoek TNO (author) article 1984
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van der Greef, J. (author), Bouwman, J. (author), Odink, J. (author), Schrijver, J. (author), ten Noever de Brouw, M.C. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)It is shown that a fast evaluation of field desorption mass spectrometric profiles can be obtained, using quotient spectra and calculation of quotient weight factors. The characteristics of a program developed for this purpose are described and as an example this approach has been applied to detect metabolites in urine samplesarticle 1984