Rapid analysis of pyrolysis oil using blank tube-FI method and GC-EI/FI method of JMS-T2000GC
Introduction
In the blank tube-FI (Field Ionization) method, a sample is introduced into the GC injection port, passed through a blank tube, and then detected using the soft ionization FI method. It is possible to detect molecular ions in less than one minute. When measuring a mixture of hydrocarbons such as oil, a complex mass spectrum containing multiple molecular ion peaks is obtained. Even in this case, qualitative information can be easily obtained by KMD analysis. The main components hydrocarbons related ion peaks can be classified based on carbon number and DBE (degree of unsaturation), and other ion peaks can be estimated their composition formulas. Although it is difficult to obtained the structural formula using the blank tube-FI method alone, it is possible to obtain it efficiently by using the GC-EI/FI method in combination.
In this MSTips, we will introduce the analysis results of pyrolysis oil using the above methods. Pyrolysis oil is an oil obtained from waste plastic and rubber products. It is used as an alternative fuel to petroleum and as a raw material for recycled plastics. So, it is one of the important technologies related to the circular economy.