caa a22 4500 465795684 CHVBK 20180323112037.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF02631389 doi (NATIONALLICENCE)springer-10.1007/BF02631389 Adlof R. Northern Regional Research Center, U.S. Department of Agriculture, Agricultural Research Service, 1815 N. University Street, 61604, Peoria, IL aut The rhodium-catalyzed deuteration of unsaturated triglycerides [Elektronische Daten] [R. Adlof] Tripalmitolein, triolein, trilinolein and trilinolenin were deuterated with deuterium gas and Wilkinson's catalyst [(Ph3P)3RhCl(I)]. Recrystallization of the products from acetone yielded highly pure deuterium-labelled triglycerides (TG). The deuterated TG were converted to methyl esters and analyzed by gas chromatography/mass spectroscopy to determine the deuterium distribution. Methyl palmitate-9,10-d2 (from tripalmitolein) and methyl stearate-9,10-d2 (from triolein) yielded isotopic distributions of 93-97% d2, methyl stearate-9,10,12,13-d4 (from trilinolein) of 74% d4 and methyl stearate-9,10,12,13,15,16-d6 (from trilinolenin) of only 58% d6. Because the deuterium-labelled TG were to be used in human metabolism studies, atomic absorption spectroscopy was used to determine if any residual rhodium was present. No rhodium was detected at 70 ppb (the minimum detection limit). The American Oil Chemists' Society, 1990 Journal of the American Oil Chemists Society Springer-Verlag 67/1(1990-01-01), 52-54 0003-021X 67:1<52 1990 67 11746 https://doi.org/10.1007/BF02631389 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02631389 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Adlof R. Northern Regional Research Center, U.S. Department of Agriculture, Agricultural Research Service, 1815 N. University Street, 61604, Peoria, IL aut NATIONALLICENCE 773 0- Journal of the American Oil Chemists Society Springer-Verlag 67/1(1990-01-01), 52-54 0003-021X 67:1<52 1990 67 11746 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer