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Light-emitting diodes for analytical chemistry


Macka, M and Piasecki, T and Dasgupta, PK, Light-emitting diodes for analytical chemistry, Annual Review of Analytical Chemistry, 7 pp. 183-207. ISSN 1936-1327 (2014) [Refereed Article]

Copyright Statement

Copyright c 2014 by Annual Reviews.

DOI: doi:10.1146/annurev-anchem-071213-020059


Light-emitting diodes (LEDs) are playing increasingly important roles in analytical chemistry, from the final analysis stage to photoreactors for analyte conversion to actual fabrication of and incorporation in microdevices for analytical use. The extremely fast turn-on/off rates of LEDs have made possible simple approaches to fluorescence lifetime measurement. Although they are increasingly being used as detectors, their wavelength selectivity as detectors has rarely been exploited. From their first proposed use for absorbance measurement in 1970, LEDs have been used in analytical chemistry in too many ways to make a comprehensive review possible. Hence, we critically review here the more recent literature on their use in optical detection and measurement systems. Cloudy as our crystal ball may be, we express our views on the future applications of LEDs in analytical chemistry: The horizon will certainly become wider as LEDs in the deep UV with sufficient intensity become available.

Item Details

Item Type:Refereed Article
Keywords:optical methods of analysis, absorbance detection, fluorescence detection, microfluidic chip, sensors, capillary separations
Research Division:Chemical Sciences
Research Group:Analytical chemistry
Research Field:Separation science
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the chemical sciences
UTAS Author:Macka, M (Professor Mirek Macka)
ID Code:98555
Year Published:2014
Web of Science® Times Cited:92
Deposited By:Austn Centre for Research in Separation Science
Deposited On:2015-02-19
Last Modified:2017-10-28

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