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Issue 21, 2013
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Coffee origin discrimination by paper spray mass spectrometry and direct coffee spray analysis

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Abstract

Here we explore the application of the ambient ionization technique paper spray mass spectrometry (PS-MS) combined with the multivariate statistical tools principal component analysis and hierarchical cluster analysis as a fast and simple method to discriminate green arabica coffee beans from three different origins in Brazil. PS-MS does not require nebulizing gas or complex protocols for sample preparation and by the analysis of 5 μL of whole coffee bean extracts it was possible to discriminate the coffee origin. Furthermore, we report the direct analysis of a single coffee bean using a bean slice as the sample and also the substrate for electrospray ionization.

Graphical abstract: Coffee origin discrimination by paper spray mass spectrometry and direct coffee spray analysis

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Publication details

The article was received on 24 Jul 2013, accepted on 30 Aug 2013 and first published on 02 Sep 2013


Article type: Paper
DOI: 10.1039/C3AY41247D
Citation: Anal. Methods, 2013,5, 5944-5948
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    Coffee origin discrimination by paper spray mass spectrometry and direct coffee spray analysis

    R. Garrett, C. M. Rezende and D. R. Ifa, Anal. Methods, 2013, 5, 5944
    DOI: 10.1039/C3AY41247D

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