Caffeine quantification in dietary supplements using high-throughput on-line solid phase extraction coupled to Venturi easy ambient sonic-spray ionization mass spectrometry

Caffeine is present in a large number of beverages and is an additive used in dietary supplements. Therefore, the concern about its quality and safety for consumers has been increasing and hence requires faster and simpler analytical methods to determine the caffeine amount. The high-throughput anal...

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Bibliographic Details
Published in:	Analytical methods Vol. 16; no. 17; p. 2678
Main Authors:	Tega, David Ulisses, Campos Oliveira, Luan Felipe, Ferreira, Patrick Cesar, Soldera, Bruna Beatriz, Nascimento, Heliara Dalva Lopes, Eberlin, Marcos Nogueira, Sussulini, Alessandra
Format:	Journal Article
Language:	English
Published:	England 03-05-2024
Subjects:	Caffeine - analysis Chromatography, Liquid - methods Dietary Supplements - analysis High-Throughput Screening Assays - methods Solid Phase Extraction - methods Spectrometry, Mass, Electrospray Ionization - methods
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Summary:	Caffeine is present in a large number of beverages and is an additive used in dietary supplements. Therefore, the concern about its quality and safety for consumers has been increasing and hence requires faster and simpler analytical methods to determine the caffeine amount. The high-throughput analysis is an appropriate solution to pharmaceuticals, bioanalysis, forensic and food laboratory routines. In this sense, Venturi easy ambient sonic-spray ionization mass spectrometry (V-EASI-MS), a specific ambient ionization source, is suitable to enable direct analysis of sample solutions in real time and is appropriate to be coupled to liquid chromatography (LC). The development of an on-line solid phase extraction system coupled to V-EASI-MS optimizes the advantages of LC-MS hyphenation by enhancing the figures of merit of the analytical method according to AOAC guidelines and simultaneously minimizing the runtime analysis to 1.5 min per sample, as well as sample preparation steps and solvent consumption, which is currently a challenge for quantitative applications of ambient ionization MS.
ISSN:	1759-9679
DOI:	10.1039/d4ay00333k