Searched for: author:"van Agtmaal, E.J."
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Bloem, M.W. (author), Wedel, M. (author), van Agtmaal, E.J. (author), Speek, A.J. (author), Saowakontha, S. (author), Schreurs, W.H.P. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
A group of 134 school children aged 3-9 y, with signs of conjunctival xerosis, from the rural area of Sakorn Nakhon province of Northeast Thailand were selected for a controlled study on the short-term effect (2 wk) of a single, oral high dose of vitamin A on iron metabolism. After collection of the baseline data, children within villages were...
article 1990
Speek, A.J. (author), van Agtmaal, E.J. (author), Saowakontha, S. (author), Schreurs, W.H.P. (author), van Haeringen, N.J. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
A fast and sensitive high-performance liquid chromatographic (HPLC) method for the determination of vitamin A (all-trans retinol) in 50 ??l human tear fluid is described. After deproteinization with ethanol and extraction with n-hexane, retinol is separated from the extract on a straight-phase HPLC column and detected fluorometrically. Vitamin A...
article 1986