Materials Testing & Research

Determination of Aromatic Amines Derived from Azo Colorants by GC/MS Using Supported Liquid Extraction Chem Elut S Cartridges

Agilent Chem Elut S is a sample preparation product that uses synthetic media for supported liquid extraction (SLE). This study uses the Chem Elut S cartridges for the quantitative analysis of aromatic amines derived from azo dyes according to European method ISO 14362-1. A sodium citrate/sodium hydroxide solution containing aromatic amines was loaded onto the cartridge and held for 15 minutes, then eluted with methyl tert-butyl ether (MTBE) to give an extract for GC/MS analysis. The method measured amines at 30 µg/mL for three different SLE cartridge formats, all delivering high recovery (87 to 119%) and excellent reproducibility (<9% RSD). Results demonstrate that Chem Elut S is a high‑performance SLE product for the determination of aromatic amines