Simultaneous Voltammetric/Amperometric Determination of Sulfide and Nitrite in Water at BDD Electrode
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2015-06-19 |
| Journal | Sensors |
| Authors | Anamaria Baciu, Magdalena Ardelean, Aniela Pop, Rodica Pode, Florica Manea |
| Institutions | Polytechnic University of TimiÅoara |
| Citations | 35 |
Abstract
Section titled āAbstractāThis work reported new voltammetric/amperometric-based protocols using a commercial boron-doped diamond (BDD) electrode for simple and fast simultaneous detection of sulfide and nitrite from water. Square-wave voltammetry operated under the optimized working conditions of 0.01 V step potential, 0.5 V modulation amplitude and 10 Hz frequency allowed achieving the best electroanalytical parameters for the simultaneous detection of nitrite and sulfide. For practical in-field detection applications, the multiple-pulsed amperometry technique was operated under optimized conditions, i.e., ā0.5 V/SCE for a duration of 0.3 s as conditioning step, +0.85 V/SCE for a duration of 3 s that assure the sulfide oxidation and +1.25 V/SCE for a duration of 0.3 s, where the nitrite oxidation occurred, which allowed the simultaneously detection of sulfide and nitrite without interference between them. Good accuracy was found for this protocol in comparison with standardized methods for each anion. Also, no interference effect was found for the cation and anion species, which are common in the water matrix.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2014 - Heterotrophic and Elemental-Sulfur-Based Autotrophic Denitrification Processes for Simultaneous Nitrate and Cr (VI) Reduction [Crossref]
- 2015 - Electrochemical and Other Methods for Detection and Determination of Dissoleved Nitrite: A Review [Crossref]
- 2010 - Simultaneous Electrochemical Determination of Nitrate and Nitrite in Aqueous Solution Using Ag-doped Zeolite-Expanded Graphite-Epoxy Electrode [Crossref]
- 1997 - The Determination of Sulfide in Seawater by Flow-Analysis with Voltammetric Detection [Crossref]
- 1999 - Metal-Sulfide Complexation in Seawater [Crossref]
- 2009 - Sulfide Removal by Simultaneous Autotrophic and Heterotrophic Desulfurization-Denitrification Process [Crossref]
- 2012 - Simultaneous Sulfide and Nitrite Removal from Industrial Wastewaters under Denitrifying Conditions [Crossref]
- 1995 - Hydrogen Sulfide and Reduced-Sulfur Gases Adversely Affect Neurophysiological Functions [Crossref]
- 2002 - Determination of Nitrate and Nitrite by High-Performance Liquid Chromatography in Human Plasma [Crossref]