Stable carbon isotope ratio measurements with a gas density meter

Abstract

A method is presented for measuring CI3/CI2 isotope ratio of organic compounds by burning the material in a stream of normal CO2, separating the ccmbustion products by gas chromatography and sequentially measuring the density of the enri ched CO2 peak with a gas density meter. Data are pre· sented for the ana lysis of enri c hed et hyl acetate from 15 to I percent enrichment. The method is applicable for other stab le isotope a na lysis.