Publication detail

NEW GENERATION OF DEEP-UV LEDS INCORPORATED IN PORTABLE ROBUST LOW COST DETECTORS FOR MICROFLUIDIC AND MINIATURISED ANALYSIS

DVOŘÁK, M.YAN, L.NUCHTAVORN, N.NESTERENKO, N., P.MACKA, M.

Original Title

NEW GENERATION OF DEEP-UV LEDS INCORPORATED IN PORTABLE ROBUST LOW COST DETECTORS FOR MICROFLUIDIC AND MINIATURISED ANALYSIS

Type

conference paper

Language

English

Original Abstract

An effective use of optical detection, especially in microfluidics, aimed at portable, robust and relatively inexpensive platforms requiring inexpensive, commercially available, miniaturized, robust and analytically well performing light sources. The advantages of simplicity, low cost and efficiency is represented by detection systems using light emitting diodes (LEDs) as light source with a special attention to recently developed new generation of deep-UV LEDs (below 300 nm). Previous generations of deep-UV LEDs had significant drawbacks such as low optical power (in the range of μW), strong parasitic emission in the visible spectrum, short lifetime and excessive heat generation .The new generation of deep-UV LEDs has significantly improved these characteristics. In this work we investigated optical performance of new generation of deep-UV LEDs with emission maxima at 255 and 280 nm. The optical power and emission spectra were tested. These LEDs were used in in-house photometric detector for use in a portable capillary FIA and LC system based on a microfluidic platform. The application of this detector was demonstrated for isocratic LC separation of parabens.

Keywords

LED, portable instrumentation, separation, chromatography

Authors

DVOŘÁK, M.;YAN, L.;NUCHTAVORN, N.;NESTERENKO, N., P.;MACKA, M.

RIV year

2015

Released

18. 8. 2015

Publisher

Institute of Analytical Chemistry of the CAS, v. v. i., Brno, Czech Republic

Location

Brno

ISBN

978-80-904959-3-7

Book

CECE 2015 12th International Interdisciplinary Meeting on Bioanalysis

Edition

první

Edition number

1

Pages from

112

Pages to

115

Pages count

230

URL

http://www.ce-ce.org/cece2015/index-past2015.htm

BibTex

@inproceedings{BUT121265,
  author="DVOŘÁK, M. and YAN, L. and NUCHTAVORN, N. and NESTERENKO, N., P. and MACKA, M.",
  title="NEW GENERATION OF DEEP-UV LEDS INCORPORATED IN PORTABLE ROBUST LOW COST DETECTORS FOR MICROFLUIDIC AND MINIATURISED ANALYSIS",
  booktitle="CECE 2015 12th International Interdisciplinary Meeting on Bioanalysis",
  year="2015",
  series="první",
  number="1",
  pages="112--115",
  publisher="Institute of Analytical Chemistry of the CAS, v. v. i., Brno, Czech Republic",
  address="Brno",
  isbn="978-80-904959-3-7",
  url="http://www.ce-ce.org/cece2015/index-past2015.htm"
}