radiometric; edible oil; isotope; mass spectrometric
Abstract :
[en] 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 BCRsterol 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%.
Disciplines :
Food science Chemistry
Author, co-author :
Marlier, M.
Lognay, Georges ; Université de Liège - ULiège > Gembloux Agro-Bio Tech
Wagstaffe, J.
Dreze, P.
Severin, M.
Language :
English
Title :
Application Of Radiometric And Isotope Dilution-Mass Spectrometric Techniques To The Certification Of Edible Oil And Fat Reference Materials
