Monitoring of Butyltin Compounds in PVC Food Packaging - Determination of Butyltin Compounds in PVC Wrap and Gasket for Food Packaging by GC/MS

摘要

The levels of butyltin compounds in poly(vinyl chloride) (PVC) food packaging using gas chromatography/ mass spectrometry (GC/MS) were monitored. The analytical method, involving the ethylation with sodium tetraethylborate, was found to be selective and sensitive for mono-n-butyltin (MET), di-w-butyltin (DBT), and tri-n-butyltin (TBT), validated by a 0.005 mu g/mL limit of detection (LOD), an R~2> 0.999 for linearity, and >90% of recovery, respectively. Finally, none of the commercial food wraps andgaskets showed detectable levels of butyltin compounds.