Fingerprinting potential migrants

Fingerprinting potential migrants from rubber compounds... 

H NMR spectra can be used in several ways, from a simple fingerprint of the potential migrants... 

As in-house, rubber specific databases are developed for LC-MS, the inclusion of this technique into the fingerprinting process will complement GC-MS data by contributing information on thermally labile and relatively large (e.g. oligomeric) potential migrants. This has been demonstrated recently in a paper by Sidwell, which describes how LC-MS was used to provide additional information on the species present in an ether extract of a food contact ethylene-propylene-diene monomer (EPDM) rubber. 

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