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de Vos, R.H. (author), van Dokkum, W. (author), Schouten, A. (author), Jong de -Berkhout, P. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)Over a period of 2.5 yr, 221 different food items of a 'market basket' of 18-yr-old males were purchased every 3 months. In total, 10 market baskets were collected. The foodstuffs were prepared by normal methods and combined into 23 commodity groups. Homogenates were prepared from each commodity group, followed by analysis for 17 different...article 1990
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van Eeden, C.H. (author), de Jong, A.W.J. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)The well-known Kroller method for the determination of cyanide requires the use of the harmful chemicals benzidine (carcinogenic) and bromine (toxic) in the colorimetric part; the analytical result depends strongly on the conduct of the liberation procedure. The substitution of barbituric acid and N-chlorosuccinimide for benzidine and bromine...article 1985
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de Vos, R.H. (author), van Dokkum, W. (author), Olthof, P.D.A. (author), Quirijns, J.K. (author), Muys, T. (author), van der Poll, J.M. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)Over a period of 2 yr 126 different food items of a market basket of 16-18 yr old males were purchased every 2 months. The foodstuffs were prepared as for eating, and were combined in 12 commodity groups. Twelves samples of each food group were homogenized and analysed for 78 different chemicals, including pesticides, PCBs, bromine, heavy metals...article 1984
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Centraal Instituut voor Voedingsonderzoek TNO (author), van Dokkum, W. (author), de Vos, R.H. (author), Cloughley, F.A. (author), Hulshof, K.F.A.M. (author), Dukel, F. (author), Wijsman, J.A. (author)During a period of 2 years, every 2 months 126 different food items forming a 'market basket' were purchased, prepared and divided into twelve food commodity groups. The 'market basket' was based on a study of the dietary pattern of 16- to 18-year-old male adolescents. In the (homogenized) food group various additives and components of...article 1982
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Haagsma, N. (author), Slump, P. (author), Gortemaker, B. (author), Schreuder, R. (author), Centraal instituut voor voedingsonderzoek TNO (author)A comparison is made between lysinoalanine (LAL) determinations both with an automatic amino acid analyzer (AAA) and with thin layer chromatography-densitometry (TLC) in different types of food and food ingredients, taken from the Dutch market. Generally there is a reasonable agreement between the LAL content obtained by both methods. However,...article 1978