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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F15%3APU117650" target="_blank" >RIV/00216305:26310/15:PU117650 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.ce-ce.org/cece2015/index-past2015.htm" target="_blank" >http://www.ce-ce.org/cece2015/index-past2015.htm</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10406 - Analytical chemistry

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

CECE 2015 12th International Interdisciplinary Meeting on Bioanalysis

ISBN

978-80-904959-3-7

ISSN

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e-ISSN

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Počet stran výsledku

230

Strana od-do

112-115

Název nakladatele

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

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

21. 9. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000383860400041