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BioChromato Technique for Identification of Contamination from Food Wrap Plastics

BioChromato Technique for Identification of Contamination from Food Wrap Plastics
July 20, 2021

BioChromato has announced that its ionRocket sample preparation device, used in combination with Direct Analysis in Real-Time Mass Spectrometry (DART®-MS), provides a powerful new method capable of identifying and discriminating between different sources of plastic films used for food processing and packaging.

Food wrap film, also known as cling film or plastic wrap, is widely used for food processing and packaging, leading to the risk that plastic might be introduced as a foreign matter into food items. While some food processing companies have switched to using low density polyethylene food wrap for environmental reasons, many still make food wrap from polyvinylidene chloride (PVDC). Since food wrap from a variety of sources is used at different stages during manufacturing of food items, the ability to discriminate between food wraps made by different manufacturers could help identify a source of contamination. While Fourier transform infrared is a frequent choice for rapid analysis of foreign matter, it was found in this case that it could not discriminate between PVDC films made by different manufacturers.

By studying the different additives used in these PVDC films, the ionRocket DART-MS analytical method is shown to be a rapid and effective tool for not only the detailed examination of foreign object contamination pathways but also for quality control and forensic discrimination.

The ionRocket is a temperature-heating device for direct thermal desorption and pyrolysis of samples, prior to ionization and analysis by mass spectrometry. Using ionRocket a temperature gradient from ambient up to 600 ºC can be achieved in just a few minutes. This enables plastics to be pyrolyzed and then introduced into the DART-MS gas stream.


BioChromato Inc. | http://biochromato.com

KEYWORDS: films

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