Short Lecture “Increasing the confidence in adulteration and authenticity analysis in food by using Trapped Ion Mobility High Resolution Mass Spectrometry”

Trapped Ion Mobility Spectrometry (TIMS) is revolutionising the depth of coverage that can be obtained when analysing complex samples. This is true for proteomic, metabolomic, environmental and food samples. Frequently, TIMS can differentiate up to twice as many ʼfeaturesʼ within a sample. This is due to TIMS adding an additional separation by cross collision area (CCS) of the molecules in the sample. Thus, samples are being analysed in 4D.

In order for authenticity studies to be undertaken, the first step of finding all ‘featuresʼ within a sample is more discriminatory if CCS values are included. Once ’featureʼ sets have been obtained for both authentic samples and samples being tested then statistical analysis can be applied to determine authenticity.

This presentation will describe in greater detail these points and illustrate with field examples.

Publication History

Article published online:
12 December 2022