CLASSIFICATION OF FIELD ASYMMETRIC ION MOBILITY SPECTROMETRY DATA FOR DETECTION OF BOWEL BACTERIA

Julian William Gardner, James McIntosh, Natalie Ouaret, Peter Gold, Chuka Nwokolo, Kama Bardhan, Ramesh Arasaradnam,James Covington

Keywords

Pattern recognition, data processing, chemical sensors,electronic noses.

Abstract

Urine samples taken from patients before and after bowel cleansing, previously analysed with an e-nose, have been analysed using an Owlstone Nanotech Lonestar device based upon field asymmetric ion mobility spectrometry (FAIMS). Clinical samples have been studied and chemical headspace classified as a crucial first step towards our understanding of more complex microflora populations. Artificial neural networking techniques have been combined with dimensionality reduction and feature selection methods with an accuracy of up to 94%.

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