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Direct liquid scintillation measurement of the natural carbon radioactivity of glycerols for the determination of their biological origin
Author(s) -
Piater H.,
Figge K.
Publication year - 1972
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740230205
Subject(s) - glycerol , liquid scintillation counting , carbon fibers , chemistry , carbon 14 , chromatography , organic chemistry , materials science , physics , composite number , composite material , quantum mechanics
Glycerol of recent biological origin can be differentiated from that produced from archaic sources of carbon, e.g. mineral oil or coal products, by measuring the 14 C content by liquid scintillation counting. In the case of synthetic glycerol derived from archaic carbon the count rate, i.e. background, was independent of the amount of sample added, while with natural glycerol the count rate increases linearly with the amount of sample. It is possible to detect 15% of natural glycerol in admixture with synthetic glycerol with a confidence of 99%.