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Type: Artigo de periódico
Title: Fingerprinting Of Propolis By Easy Ambient Sonic-spray Ionization Mass Spectrometry.
Author: Sawaya, Alexandra C H F
Abdelnur, Patrícia Verardi
Eberlin, Marcos N
Kumazawa, Shigenori
Ahn, Mok-Ryeon
Bang, Keuk-Seung
Nagaraja, Narayanappa
Bankova, Vassya S
Afrouzan, Houshang
Abstract: Chemical profiles of a representative set of 49 propolis ethanolic extracts collected worldwide (North and South America, Europe, Asia and Oceania) were obtained via easy ambient sonic-spray ionization mass spectrometry (EASI-MS). This simple and easily implemented fingerprinting technique analyses directly (without any pre-separation or sample manipulation) a tiny droplet of the ethanolic extract placed on a inert surface under ambient conditions. Data acquisition took about a minute per sample with no substantial sample carry-over. Extraction of propolis with ethanol by using an ultrasonic bath method gave EASI-MS data similar to the traditional maceration method, reducing total analysis time for the crude propolis resin from a week to just ca 1h. Principal component analysis of the EASI-MS data is shown to group samples according to the plant sources of their resins, which characterizes their geographical origin.
Subject: Mass Spectrometry
Principal Component Analysis
Reproducibility Of Results
Time Factors
Rights: fechado
Identifier DOI: 10.1016/j.talanta.2009.11.043
Date Issue: 2010
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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