Detection of biologically important substances using in-situ spectroelectrochemistry

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Detection of biologically important substances using in-situ spectroelectrochemistry

Popis výsledku v původním jazyce

Surface-enhanced Raman scattering (SERS) spectroscopy is a technique appropriate for detection of low amount of various analytes. Molecules of analyte can be adsorbed on surface either by physisorption or by chemisorption. For detection of different substances we have used combination of SERS spectroscopy with potentiostatic technique. An in-situ spectroelectrochemical cell was constructed as the three-electrode cell and is designed for connection to Raman probe of Raman spectrometer Dimension P2 (excitation wavelength 785 nm). The SERS-active electrode is based on Pt target electrochemically coated by copper. In our previous studies we demonstrated that copper substrates are suitable for SERS spectroscopy exhibiting surface enhancement factor higher than 105. Copper is from chemical point of view more reactive material than silver or gold that means a variety of analytes can be chemisorbed. Potential values from 0 mV to -1000 mV were applied for each of studied analytes. Analytes were

Název v anglickém jazyce

Detection of biologically important substances using in-situ spectroelectrochemistry

Popis výsledku anglicky

Surface-enhanced Raman scattering (SERS) spectroscopy is a technique appropriate for detection of low amount of various analytes. Molecules of analyte can be adsorbed on surface either by physisorption or by chemisorption. For detection of different substances we have used combination of SERS spectroscopy with potentiostatic technique. An in-situ spectroelectrochemical cell was constructed as the three-electrode cell and is designed for connection to Raman probe of Raman spectrometer Dimension P2 (excitation wavelength 785 nm). The SERS-active electrode is based on Pt target electrochemically coated by copper. In our previous studies we demonstrated that copper substrates are suitable for SERS spectroscopy exhibiting surface enhancement factor higher than 105. Copper is from chemical point of view more reactive material than silver or gold that means a variety of analytes can be chemisorbed. Potential values from 0 mV to -1000 mV were applied for each of studied analytes. Analytes were

Druh

D - Stať ve sborníku

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 7th International Students Conference "Modern Analytical Chemistry"

ISBN

978-80-7444-010-6

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

22-25

Název nakladatele

Univerzita Karlova v Praze

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

29. 9. 2011

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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