Rapid Scotch Whisky Analysis and Authentication Using Desorption Atmospheric Pressure Chemical Ionisation Mass Spectrometry

Overview

Journal Sci Rep

Specialty Science

Date 2019 May 31

PMID 31142757

Citations 7

Authors

Barry L Smith

David M Hughes

Abraham K Badu-Tawiah

Rebecca Eccles

Ian Goodall

Simon Maher

Affiliations

Soon will be listed here.

Abstract

Whisky, as a high value product, is often adulterated, with adverse economic effects for both producers and consumers as well as potential public health impacts. Here we report the use of DAPCI-MS to analyse and chemically profile both genuine and counterfeit whisky samples employing a novel 'direct from the bottle' methodology with zero sample pre-treatment, zero solvent requirement and almost no sample usage. 25 samples have been analysed from a collection of blended Scotch whisky (n = 15) and known counterfeit whisky products (n = 10). Principal component analysis has been applied to dimensionally reduce the data and discriminate between sample groups. Additional chemometric modelling, a partial least squares regression, has correctly classified samples with 92% success rate. DAPCI-MS shows promise for simple, fast and accurate counterfeit detection with potential for generic aroma profiling and process quality monitoring applications.

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