date:Jun 30, 2012
stable isotope test for carbon 14, said Bolliet, since anything synthetic would not register with carbon 14. However, some criminals were adding carbon 14 to their synthetic substance to fool the test.
Kalsec had devised tests combining gas chromatography using a flame ionisation detector, principal component analysis and multiple linear regression to root out the counterfeit substances.
However, Bolliet said the tests had so far only been applied to onion and garlic essential oils.There are