A method for determining the origin of substances with biological, biochemical and nutritional physiological relevance and distinguishing them from synthetic analogs using their relative positional oxygen or hydrogen isotope ratios (delta<18>O value and delta<2>H value), in which-based on the fact that for organic compounds there are at least two different primary or secondary sources for these elements, each with different isotope values, and the incorporation of these elements is accompanied by different, but characteristic effects-the positional delta<18>O values or delta<2>H values are individually determined in the substances to be tested and they are compared with the values expected from biosynthesis, where a correspondence or deviation allows the authenticity or origin or adulteration of the substance to be detected.
Method for determination of the origin and authenticity of materials with biological, biochemical and nutritional physiological relevance
FUGANTI, CLAUDIO;
2004-01-01
Abstract
A method for determining the origin of substances with biological, biochemical and nutritional physiological relevance and distinguishing them from synthetic analogs using their relative positional oxygen or hydrogen isotope ratios (delta<18>O value and delta<2>H value), in which-based on the fact that for organic compounds there are at least two different primary or secondary sources for these elements, each with different isotope values, and the incorporation of these elements is accompanied by different, but characteristic effects-the positional delta<18>O values or delta<2>H values are individually determined in the substances to be tested and they are compared with the values expected from biosynthesis, where a correspondence or deviation allows the authenticity or origin or adulteration of the substance to be detected.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
