SIFT-MS instantly analyzes compounds in contact with your food.


Jessica Creak Syft Technologies Application Scientist

Jessica Creak

BA(Hons), MA(Cantab)


Applications Scientist

Jessica graduated from the University of Cambridge in 2013 with a degree in Natural Sciences and specializing in chemistry. Before joining Syft in 2016 she completed a two-year leadership development course managed by TeachFirst, which saw her teaching chemistry in a secondary school located in a low socioeconomic area of Mid-Wales in the UK.

Jessica enjoys working within the food, flavour and environmental applications at Syft and is a keen blogger for our website!

Outside of work Jessica enjoys walking, travelling and team sports.

Ongoing research suggests that we could be polluting our food with harmful compounds. The cumulative health effects of these chemicals are unknown (see B. Geueke, C.C. Wagner and J. Muncke, “Food contact substances and chemicals of concern: a comparison of inventories” in Food Addit. Contam. Part A Chem. Anal. Control Expo. Risk Assess. 2014; 31(8):1438-50, which is accessible here.

Selected Ion Flow Tube Mass Spectrometry (SIFT-MS) analysis of polyethylene sandwich bags (two popular brands and one house brand) were carried out to determine concentrations of various hydrocarbons released from the bag material. Bags were filled with ultra-high purity nitrogen and incubated for 15 minutes prior to analysis. Thirty-second scans enable limits of detection well below 1 part-per-billion by volume (ppbv).

compounds in polethylene sandwich bags

Hydrocarbon release from three brands of sandwich bags filled with ultra-high purity nitrogen gas.

SIFT-MS instantly analyzes compounds in contact with your food.

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