caa a22 4500 465748864 CHVBK 20180323111828.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00322507 doi (NATIONALLICENCE)springer-10.1007/BF00322507 Application of radiometric and isotope dilution-mass spectrometric techniques to the certification of edible oil and fat reference materials [Elektronische Daten] [M. Marlier, G. Lognay, J. Wagstaffe, Ph. Dreze, M. Severin] Summary: A method for the isotope dilution-mass spectrometric (ID-MS) determination of butyric acid C4 in butter fat (RM164) was developed in order to support the data gathered from nine experienced European laboratories within the final certification exercise. The ID-MS results (3,46±0,06 g C4/100 g fat) were in very good agreement with those obtained by "classical” GLC and HPLC techniques. (RM164 was finally certified at 3,49±0,06 g C4/100 g fat). This paper reports briefly on a previous preliminary study undertaken to validate a procedure (agreed by the BCR-sterol group) for the isolation of the sterol from fats and oils. By use of labelled sterols and radiometric measurements it was shown that sterol recoveries were superior to 96%. The procedure was applied during the 3rd Intercomparison exercise for sterol determination in RM162 (Blend of Soya-Maize oil), for the GLC measurements of cholesterol in RM380 (Whole milk powder) and RM384 (Lyophilized pork muscle) and to the ID-MS determination of cholesterol in RM163 (blend of animal fats) and RM164 (anhydrous milk fat). Springer-Verlag, 1990 Marlier M. State Faculty of Agricultural Sciences-B-5800-Gembloux, Belgium aut Lognay G. State Faculty of Agricultural Sciences-B-5800-Gembloux, Belgium aut Wagstaffe J. Bureau of Communities Reference-B-1400-Brussels, Belgium aut Dreze Ph State Faculty of Agricultural Sciences-B-5800-Gembloux, Belgium aut Severin M. State Faculty of Agricultural Sciences-B-5800-Gembloux, Belgium aut Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/4(1990-01-01), 419-422 0937-0633 338:4<419 1990 338 216 https://doi.org/10.1007/BF00322507 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00322507 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Marlier M. State Faculty of Agricultural Sciences-B-5800-Gembloux, Belgium aut NATIONALLICENCE 700 1- Lognay G. State Faculty of Agricultural Sciences-B-5800-Gembloux, Belgium aut NATIONALLICENCE 700 1- Wagstaffe J. Bureau of Communities Reference-B-1400-Brussels, Belgium aut NATIONALLICENCE 700 1- Dreze Ph State Faculty of Agricultural Sciences-B-5800-Gembloux, Belgium aut NATIONALLICENCE 700 1- Severin M. State Faculty of Agricultural Sciences-B-5800-Gembloux, Belgium aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/4(1990-01-01), 419-422 0937-0633 338:4<419 1990 338 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer