Impedance spectroscopy for determination of total dissolved solids in aqueous solutions of Sodium Chloride and Magnesium Sulphate

dc.contributor.authorDe Beer, D.J.
dc.contributor.authorJoubert, Trudi-Heleen
dc.contributor.emailu15100066@tuks.co.zaen_ZA
dc.date.accessioned2020-08-21T08:25:44Z
dc.date.available2020-08-21T08:25:44Z
dc.date.issued2019-10
dc.description.abstractImpedance spectroscopy was performed on Sodium Chloride and Magnesium Sulphate solutions to accurately determine Total Dissolved Solids (TDS) in solution. This was done despite the electrical conductivity measurement (the standard technique for determining TDS) of the two types of aqueous solutions being different at similar TDS levels. A novel method for using impedance spectroscopy to differentiate between the two salts in aqueous solution is described. It was found that impedance values from only two frequencies was enough to discriminate between the Sodium Chloride and Magnesium Sulphate solutions, which means that TDS can accurately be determined from the impedance data as the solute is known. Work is in progress to develop a low-cost version of the system to provide point-of-care water quality monitoring solution to those in need.en_ZA
dc.description.departmentElectrical, Electronic and Computer Engineeringen_ZA
dc.description.librarianhj2020en_ZA
dc.description.sponsorshipThe National Research Foundationen_ZA
dc.description.urihttps://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=7361en_ZA
dc.identifier.citationD. J. De Beer and T. Joubert, "Impedance Spectroscopy for Determination of Total Dissolved Solids in Aqueous Solutions of Sodium Chloride and Magnesium Sulphate," 2019 IEEE SENSORS, Montreal, QC, Canada, 2019, pp. 1-4, doi: 10.1109/SENSORS43011.2019.8956627.en_ZA
dc.identifier.issn1530-437X (print)
dc.identifier.issn1558-1748 (online)
dc.identifier.other10.1109/SENSORS43011.2019.8956627
dc.identifier.urihttp://hdl.handle.net/2263/75837
dc.language.isoenen_ZA
dc.publisherInstitute of Electrical and Electronics Engineersen_ZA
dc.rights© 2019 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.en_ZA
dc.subjectTotal dissolved solids (TDS)en_ZA
dc.subjectChemical variables measurementen_ZA
dc.subjectElectric impedance measurementen_ZA
dc.subjectElectrical conductivity measurementen_ZA
dc.subjectElectrochemical analysisen_ZA
dc.subjectMagnesium compoundsen_ZA
dc.subjectSodium compoundsen_ZA
dc.titleImpedance spectroscopy for determination of total dissolved solids in aqueous solutions of Sodium Chloride and Magnesium Sulphateen_ZA
dc.typePostprint Articleen_ZA

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