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

被引：48

作者：

Garrett, Rafael ^{[1
,2
]}

Rezende, Claudia M. ^{[2
]}

Ifa, Demian R. ^{[1
]}

机构：

[1] York Univ, Ctr Res Mass Spectrometry, Toronto, ON M3J 1P3, Canada

[2] Univ Fed Rio de Janeiro, Inst Chem, BR-21945970 Rio De Janeiro, RJ, Brazil

来源：

ANALYTICAL METHODS | 2013年 / 5卷 / 21期

基金：

加拿大自然科学与工程研究理事会;

关键词：

CHLOROGENIC ACIDS; ARABICA L; IONIZATION; GREEN; IDENTIFICATION; QUALITY; BEANS;

D O I：

10.1039/c3ay41247d

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

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 mu L 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.

引用

页码：5944 / 5948

页数：5

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