Determination of MOAH by GC×GC-FID:

Overview

With mandatory EU maximum limits for mineral oil aromatic hydrocarbons (MOAH) taking effect in 2027 under Commission Regulation (EU) 2023/915, advanced analytical methods are essential to overcome the raised limits of quantification caused by interferences in standard LC-GC-FID based method. This poster presents comprehensive two-dimensional gas chromatography (GC×GC-FID) as a reliable addition to the LC-GC-FID, that effectively separates interfering compounds such as terpenes, polychlorinated alkanes, and ROAH and enables precise MOAH quantification, including differentiation by the number of aromatic rings. While intense overlapping of polyaromatic and MOAH-regions in certain matrices like refined or hydrogenated fats can still present limitations, this approach provides a robust tool to secure quantifiable, regulatory-compliant values.