Analysis of Ethanol in E10 Gasoline Using Polyarc Microreactor for GC

User Benefits

- Since the Polyarc microreactor converts all organic compounds to methane molecules, its detection sensitivity enables sensitive detection of the carbon concentration of samples. - Polyarc reduces the work of preparing calibration curves for quantitative analysis of multiple compounds. - Since Polyarc is a microreactor, sharp peaks can be obtained, and analysis of multiple compounds is also possible.

Introduction

The flame ionization detector (FID) can detect almost all organic compounds, and the sensitivity of the obtained chromatograms displays a correlation with concentration and number of carbon atoms in the compound. However, as a weakness of FID, its sensitivity decreases when an organic compound contains oxygen atoms, as in the case of alcohols. The Polyarc microreactor improves sensitivity for alcohols and other compounds containing oxygen atoms (hereinafter, oxygenated compounds), allowing calibration using a single compound. Research and use of biofuels has accelerated in recent years, and more sensitive quantitative analysis of oxygenated compounds in multiple compounds is now required. This Application News introduces an example of an analysis of a sample simulating E10 gasoline, in which 10% ethanol by volume concentration was added to gasoline, demonstrating that enhanced sensitivity for oxygenated compounds can be achieved by adding Polyarc to the instrument configuration. The accuracy of the quantitative analysis was also verified using a general standard sample (alkane).

October 7, 2025 GMT