A method has been developed on the Agilent 7000 GC Triple Quadrupole GC/MS/MS system for the analysis of foods for 20 chemicals that may be present in printing inks applied to the external surface of cartonboard packaging material. These substances may diffuse through the cartonboard or set-off onto the food contact surface and then migrate into food. The method described is suitable for the reliable determination of ink substances in packed foods at single-figure parts-per-billion (ppb, µg/kg) levels.
The document details a developed method on the Agilent 7000 GC Triple Quadrupole GC/MS/MS system for the analysis of foods for 20 chemicals that may be present in printing inks applied to the external surface of cartonboard packaging material. These substances may diffuse through the cartonboard or set-off onto the food contact surface and then migrate into food.
The method is suitable for the reliable determination of ink substances in packed foods at single-figure parts-per-billion (ppb, g/kg) levels. The note covers sample preparation procedures, GC/MS/MS system hardware configuration, analysis conditions including column specifications and MS parameters, and presents results from testing frozen fish and pasta sheets.
The described method is suitable for determining ink substances at single-figure parts-per-billion (ppb, g/kg) levels.
The method was developed to test foods for 20 printing ink components.
Add acetonitrile:dichloromethane1:1 (v/v). Shake overnight.