Zobrazeno 1 - 10
of 47
pro vyhledávání: '"H. Hooijerink"'
Publikováno v:
Analytica Chimica Acta 483 (2003) 1-2
Analytica Chimica Acta, 483(1-2), 51-59
Analytica Chimica Acta, 483(1-2), 51-59
A screening method has been developed for the determination of various anabolic steroids in kidney fat. Fat samples are extracted and steroids are trapped “on-line” during accelerated solvent extraction (ASE). Following this initial extraction sa
Autor:
M.J. Groot, E.O van Bennekom, L. Brouwer, H. Hooijerink, Willem Haasnoot, J.S. Ossenkoppele, V. Ramazza, R. Schilt, P. L. M. Berende
Publikováno v:
The Analyst 123 (1998)
The Analyst, 123, 2665-2670
The Analyst, 123, 2665-2670
To investigate the possibilities for screening and confirmation methods when the 'pour on' method of application is used for administration of growth promoters, an animal experiment was performed using a cocktail of a combination of growth promoters
Publikováno v:
Food Additives and Contaminants. 13:477-492
The European Commission, Measurement and Testing Programme (BCR) has initiated a project to improve the methodology for analysis of beta-agonists in animal feeding stuffs. An intercomparison of methods for clenbuterol in animal feed is described. The
Publikováno v:
Analytica Chimica Acta 700 (2011) 1-2
Analytica Chimica Acta, 700(1-2), 63-69
Analytica Chimica Acta, 700(1-2), 63-69
Hormone and veterinary drug screening and forensics can benefit from the recent developments in desorption electrospray ionization (DESI) mass spectrometry (MS). In this work the feasibility of DESI application for the rapid screening of intact ester
Autor:
G.R. Marchesini, H. Hooijerink, W. Haasnoot, M.W.F. Nielen, J. Buijs, K. Campbell, C.T. Elliott
Publikováno v:
TrAC : Trends in Analytical Chemistry, 28(6), 792-803
TrAC : Trends in Analytical Chemistry 28 (2009) 6
TrAC : Trends in Analytical Chemistry 28 (2009) 6
The potential for coupling technologies to deliver new, improved forms of bioanalysis is still in its infancy. We review a number of examples in which coupling has been successful, with special emphasis on combining surface-plasmon-resonance biosenso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cee652571259b824d6ba37fc6c1dd58
https://research.wur.nl/en/publications/towards-surface-plasmon-resonance-biosensing-combined-with-bioaff
https://research.wur.nl/en/publications/towards-surface-plasmon-resonance-biosensing-combined-with-bioaff
Publikováno v:
Analytica Chimica Acta, 637(1-2), 92-100
Analytica Chimica Acta 637 (2009) 1-2
Analytica Chimica Acta 637 (2009) 1-2
Hormone and veterinary drug screening and forensics can benefit from the recent developments in desorption electrospray ionisation (DESI) mass spectrometry (MS). In this work the feasibility of DESI application has been studied. Using a linear ion tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a234ec041b9b4345a923f7e0dd5527b
https://research.wur.nl/en/publications/desorption-electrospray-ionisation-mass-spectrometry-a-rapid-scre
https://research.wur.nl/en/publications/desorption-electrospray-ionisation-mass-spectrometry-a-rapid-scre
Publikováno v:
Journal of Pharmaceutical and Biomedical Analysis. 9:485-492
A method for the determination of clenbuterol in calf urine is described. After a simple two-step sample pretreatment, involving an Extrelut-3 column and a solid-phase extraction column (C2), the separation of clenbuterol from interfering compounds p
Publikováno v:
Analytica Chimica Acta 529 (2005) 1-2
Analytica Chimica Acta, 529(1-2), 167-172
Analytica Chimica Acta, 529(1-2), 167-172
A liquid chromatography (LC)-based method with mass spectrometric (MS/MS) detection was developed for the determination of estradiol benzoate residues in hair of cattle. First hair samples were pulverized with a ball mill followed by treatment with t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d99468a7212c0a90752866547c0adfe2
https://research.wur.nl/en/publications/liquid-chromatography-electrospray-ionisation-mass-spectrometry-b
https://research.wur.nl/en/publications/liquid-chromatography-electrospray-ionisation-mass-spectrometry-b
Autor:
Christopher T. Elliott, Dirk Courtheyn, Mirjam Nielen, H. Hooijerink, S. A. Boyd, M. L. Essers, E.O. van Bennekom, R. E. M. Fuchs
Publikováno v:
Rapid Communications in Mass Spectrometry 17 (2003) 14
Rapid Communications in Mass Spectrometry, 17(14), 1633-1641
Rapid Communications in Mass Spectrometry, 17(14), 1633-1641
A new approach to the search for residues of unknown growth promoting agents such as anabolic steroids and beta-agonists in feed is presented. Following primary extraction and clean-up, samples are separated using gradient liquid chromatography (LC).
Autor:
L. Brouwer, Martien L. Essers, Mirjam Nielen, E.O van Bennekom, J.J.P. Lasaroms, H. Hooijerink
Publikováno v:
Analytica Chimica Acta, 483(1-2), 11-17
Analytica Chimica Acta 483 (2003) 1-2
Analytica Chimica Acta 483 (2003) 1-2
Detection of hormones and veterinary drugs in urine samples is limited to the short-term following illegal administration. Alternative sample matrices such as hair or retina are of interest for prolonged detectability of residues. In this preliminary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9319448bb3ae9718cb5a1f69e2cb621d
https://research.wur.nl/en/publications/value-of-alternative-sample-matrices-in-residue-analysis-for-stan
https://research.wur.nl/en/publications/value-of-alternative-sample-matrices-in-residue-analysis-for-stan