Simultaneous Analysis of Methoxypyrazines in Processed Tomato Products by GC–MS/MS with SPME Arrow

User Benefits

- SPME Arrow enables high-sensitivity determination of methoxypyrazines in processed tomato products by efficiently preconcentrating volatile compounds. - GC–MS/MS in MRM mode provides isomer selectivity and reliable quantitation of methoxypyrazines, even in complex sample matrices. - The AOC-6000 Plus multifunctional autosampler automates SPME Arrow injection to increase throughput and improve repeatability.

Introduction

In processed vegetable foods and beverages, small changes in aroma and flavor can strongly affect perceived quality. For processed tomato products in particular, a vegetative (green) or hay-like off-flavor is often a key concern. This off-flavor has been linked to methoxypyrazines present at very low levels (ppt levels around 10 ng/L). Methoxypyrazines include many closely related analogs. Therefore, a robust quantitative method must deliver both high sensitivity and sufficient selectivity (and/or separation) to handle real matrices. In this article, five methoxypyrazines previously detected in vegetables were analyzed using a GC-MS/MS system with the SPME Arrow injection method. The method provides stable quantitation at ng/L (ppt) levels, even in complex, interference-rich samples.

March 24, 2026 GMT