Analysis of Double Bond Position in Olefins by Solvent-Mediated Chemical Ionization (SMCI)

User Benefits

- Chemical ionization can be used without using a high-pressure cylinder of flammable gas. - The specific ion can be monitored by attaching a reaction ion from acetonitrile to double bond in carbon chain. - Furthermore, the position of those double bonds can be analyzed from product ion scans obtained by GC-MS/MS.

Introduction

Olefins are unsaturated hydrocarbons with one carbon-carbon double bond and are used as an ingredient in a variety of materials and paints. Moreover, they are a class of compounds generated from chemical recycling that has attracted attention in recent years. They need to be analyzed because the chemical properties of such olefins differ depending not only on the number of carbon atoms, but also the double bond position. Chromatography requires using standard solutions, but they are not available for all compounds. Therefore, this article describes a technique for analyzing the double bond position in olefins based on mass spectra obtained with a GC-MS/MS using solvent-mediated chemical ionization (SMCI).

March 1, 2022 GMT