RATIONALE: There is increasing interest in methods of direct analysis mass spectrometry that bypass complex sample preparation steps.

METHODS: One of the most interesting new ionisation methods is rapid evaporative ionisation mass spectrometry (REIMS) in wh...

BACKGROUND: We describe a new approach to the recovery of information from faecal samples, based on the analysis of the molecular signature generated by rapid evaporative ionisation mass spectrometry (REIMS).

RESULTS: Faecal pellets from five different r...