Fuzzy Liquid Analysis by an Array of Nonspecifically Interacting Reagents: The Taste of Fluorescence

Fuzzy Liquid Analysis by an Array of Nonspecifically Interacting Reagents: The Taste of Fluorescence

Complex or unknown liquid analysis requires extensive instrumentation and laboratory work; simple field devices usually have serious limitations in functionality, sensitivity, and applicability. This communication presents a novel, effective, and simple approach to fingerprinting liquids. The method...

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Bibliographic Details
Published in:Journal of the American Chemical Society Vol. 135; no. 20; pp. 7422 - 7425
Main Authors: Hänninen, Pekka E, Siivonen, Joonas J, Väisänen, Pave I, Tiittanen, Satu A, Lehmusto, Mirva M, Teimonen, Timo, Törnkvist, Niklas, Sandell, Mari A, Knaapila, Antti J, Mundill, Paul, Härmä, Harri J
Format: Journal Article
Language:English
Published: United States American Chemical Society 22-05-2013
Subjects:
Alcohols - analysis
Beverages - analysis
Fluorescence
Taste
Water - analysis
Wine - analysis
Online Access:Get full text
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Summary:Complex or unknown liquid analysis requires extensive instrumentation and laboratory work; simple field devices usually have serious limitations in functionality, sensitivity, and applicability. This communication presents a novel, effective, and simple approach to fingerprinting liquids. The method is based on nonspecific interactions of the sample liquid, a long lifetime luminescent europium label, and various surface modulators in an array form that is readily converted to a field analysis μTAS system. As compared to existing e-nose or e-tongue techniques, the method is unique both in terms of sensitivity and usability, mainly due to the well-known unique properties of the europium label. This communication demonstrates the use of this new method in distinguishing different wines, waters, alcohols, and artificially modified berry juices.
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ISSN:0002-7863
1520-5126
DOI:10.1021/ja401726d