Better detection of set-off in in plastic food packaging

In this work, different mass spectrometry approaches have been used in order to identify and confirm the presence of ink components in ethanol (95%) and Tenax as food simulants. Three different sets of materials, manufactured with different printing technologies and with different structures, were analyzed.
Sample analysis by ultra performance liquid chromatography mass spectrometry (UPLC–MS), using a quadrupole-time of flight (Q-TOF) as a mass analyser proved to be an excellent tool for identification purposes while ion mobility mass spectrometry (IM-MS) shown to be very useful for the confirmation of the candidates proposed (Journal of Chromatography A, 9 May 2016).
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