Abstract
This chapter highlights the combustion methods for quantitative determination of carbon in specific organic components. Some of the combustion methods are Pregl combustion by an O2 flow and Pt gauze for heat capacity with oxidation by water vapor oxygen. Pregl type combustion can be applied where organic materials were combusted in a rapid stream of O2 in an empty tube at a temperature of 800°C. Both combustion and sweeping out of the reaction gases are accomplished by the same O2 stream. Combustion of a sample takes ∼10minutes by this method. Raising of the furnace temperature to 950°C did not affect the combustion process. The method has been presented for quantitative determination of C and H isotopic compositions of organic materials, but basically can be adopted for isotopic determination too, depending on complete yields of CO2 and H2O after combustion of the organic material. Naughton & Frodyma described a combustion system of organic material for quantitative purpose. A sample was combusted in a furnace with Pt catalyzer in an O2 atmosphere. CO2 and H2O can be collected for C and H isotopic analysis, respectively.
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