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Electrochemical detection of benzenediols using carbon-supported catalysts [Elektronski vir]Krishnamurthy, Abhilash ...A novel implementation of an electrochemical sensors making use of Screen-Printed Electrodes (SPE) has been discussed. SPE's modified with Carbon-supported Platinum (Pt/C) and Gold (Au/C) were used ... to detect the three benzenediol isomers, Catechol (CC), Hydroquinone (HQ) and Resorcinol (RS) in acidic media using traditional electrochemical analytical methods such as Cyclic Voltammetry (CV), Chronoamperometry (CA) and Differential Pulse Voltammetry (DPV). Detection of each benzenediol in isolation was possible by CV measurements, and peak oxidation potentials for each isomer were noted. Simultaneous detection of more than one, or all analytes in the same solution was also observed through DPV, once again noting the peak oxidation potentials. Quantification limits were observed using CA's across concentration values ranging from close to saturation down to 1 mM for CC and HQ, and 100 nM for RS, until the recorded current values were nearly indistinguishable to a blank 1 M HCl solution containing no analyte(s), and also evaluating the maximum possible linear range of sensing. The analytes were introduced to the sensor elements in controlled amounts and the electrochemical responses of the sensor elements were recorded and processed. Measurements were repeated across two potentiostats to ensure reproducibility. With these results, successful detection of benzenediols in acidic environment was possible using modified SPE's, proving a potential viable mechanism for quick, simple and inexpensive Volatile Toxic Organic Compounds (VTOC) detection and monitoring.Source: Electrochimica acta [Elektronski vir]. - ISSN 1873-3859 (Vol. 493, [article no.] 144389, Jul. 2024, str. 1-13)Type of material - e-articlePublish date - 2024Language - englishCOBISS.SI-ID - 199176707
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Krishnamurthy, Abhilash | ![]() |
Samardžija, Zoran | 15597 |
Trafela, Špela | 38204 |
Korent, Anja | 50496 |
Šturm, Sašo | 19030 |
Žagar, Kristina, 1981- | 28491 |
Source: Personal bibliographies
and: SICRIS
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