Patent ID: 9038435
Filing Date: 2015-05-26
Classification: G01N

Abstract:
1. A method for characterizing the ratio of hydrogen to carbon in a sample, comprising: separating a plurality of compounds in a first hydrocarbon sample using gas chromatography; measuring atomic emissions from carbon atoms and hydrogen atoms for one or more compounds from the first hydrocarbon sample; determining a first hydrogen to carbon peak area ratio based on the hydrogen peak area and carbon peak area for the one or more compounds from the first hydrocarbon sample; separating a plurality of compounds in a second hydrocarbon sample using gas chromatography; measuring atomic emissions from carbon atoms and hydrogen atoms for one or more compounds from the second hydrocarbon sample; determining a second hydrogen to carbon peak area ratio based on the hydrogen peak area and carbon peak area for the one or more compounds from the second hydrocarbon sample; and comparing the first hydrogen to carbon peak area ratio and the second hydrogen to carbon peak area ratio.