A dissolved oxygen sensor based on hot electron induced cathodic electrochemiluminescence at a disposable CdS modified screen-printed carbon electrode

Optical methods for sensing and imaging oxygen: materials, spectroscopies and applications

“…It can sense oxygen in moderately low concentration (2.4 ppm in water). In an electrochemiluminescence (ECL) based sensor for oxygen, 548 ECL was generated at a disposable CdS-modified screen printed carbon electrodes during cathodic pulse polarization. Two emissions, with peaks located at 520 nm and 580 nm, are found.…”

Disposable Screen Printed Electrochemical Sensors: Tools for Environmental Monitoring

“…Real sample assays for groundwater and tap water were also consistent with those measured by a commercial dissolved oxygen meter [52]. Various modified screen printed sensors have been demonstrated as potential candidates to measure the chemical oxygen demand and biochemical chemical oxygen demand for various environmental studies [53]. …”

Nanocomposite of electrochemically reduced graphene oxide and gold nanoparticles enhanced electrochemilunescence of peroxydisulfate and its immunosensing abililty towards human IgG

“…4, curve a). According to the previous studies [17], it is the ECL from peroxydisulfate solution. When the ERGO was electrochemically reduced from GO on the GCE, the ECL intensity was greatly enhanced (Fig.…”

“…Peroxydisulfate, as one of the most widely used co-reactants in the ECL systems [7][8][9][10][11][12][13], can be electrochemically reduced to sulfate radical anion ðSO ÅÀ 4 Þ, which is a strongly oxidizing intermediate [14]. The ðSO ÅÀ 4 Þ can undergo an electron-transfer reaction with an ECL luminophore to emit light [15][16][17]. Although weak ECL emission can also be directly generated from peroxydisulfate in aqueous solution without ECL luminophore [18][19][20], little sensing strategy has been developed with the ECL of pure peroxydisulfate.…”