Comparison of Separation Performance with Various Carrier Gases and Introduction of Gas Selector

Introduction

Various carrier gases are used in gas chromatography, including He, N2 and H2. In particular, the most frequently used is He, but alternative carrier gases have also been in demand in response to recent He supply shortages and a subsequent sharp price increase. When switching to an alternative carrier gas, it is necessary to select a carrier gas according to a critical separation required in analysis as separation performance depends on the type of carrier gas. In this article, a Grob test mix was analyzed with three types of carrier gases (i.e. He, N₂ and H₂). In addition, separation performance was investigated with each carrier gas at various linear velocities. It makes it possible to switch two types of carrier gases from LabSolutions^TM without changing the gas lines.

June 25, 2023 GMT