Analysis of Food-Packaging Filmby Headspace-GC/MS

Related Vendors

Gerhard Schubert GmbH - Verpackungsmaschinen

Elementar Analysensysteme GmbH

Italvacuum, Srl

Experimental

The first food packaging film used for this experiment was from a typical package of cookies. This film was cut into squares: 325 cm2 pieces. The typical volume used in a mason jar is a square meter but this volume is not required for the headspace sampler. The desired sensitivity can be reached with significantly lower quantities.The second packaging material tested was obtained from a shopping bag that you would typically find at a department store.

The 325 cm2 pieces of film were added directly to a 22-mL headspace vial. The vial was then sealed with silicone/PTFE septa (PerkinElmer part number B0104241). In addition, a calibration standard was prepared to get an estimate of the expected concentration of the typical solvents. This standard was prepared by adding 4.7 μg of each solvent in a 22-mL headspace vial.

The instrument used for this analysis was a TurboMatrix HS 40 Headspace Trap sampler run in headspace-only mode. This bypassed the trapping capability. If extra sensitivity is required, the trap option could be used for up to 100 times lower detection levels. The shaker option on the headspace was utilized for a faster equilibration of the solid film material. The headspace was controlled using the TurboMatrix remote control software and was coupled to the Clarus 500 GC/MS. The Clarus 500 GC was equipped with a programmable split/splitless (PSS) injector and programmable pneumatic control (PPC). Deactivated fused silica (0.32 mm) transfer line connects the TurboMatrix HS 40 Trap to the Clarus GC.The GC column was directly connected to this transfer line using a universal union (PerkinElmer part number N9302149). The Clarus 500 MS was controlled via TurboMass 5.1 GC/MS software and operated in electron ionization (EI) mode.

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