Nickel contamination analysis at cost-effective silver printed paper-based electrodes based on carbon black dimethylglyoxime ink as electrode modifier
Electrochemical detection of metal cations at paper-based sensors has been suggested as an attractive alternative to current spectroscopic and chromatographic detection techniques due to the ease of fabrication, disposable nature, and low cost. Herein, a novel carbon black (CB), dimethylglyoxime (DM...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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International Association of Physical Chemists (IAPC)
2022-01-01
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| Series: | Journal of Electrochemical Science and Engineering |
| Subjects: | |
| Online Access: | https://pub.iapchem.org/ojs/index.php/JESE/article/view/1173 |
| _version_ | 1830231835993440256 |
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| author | Keagan Pokpas Nazeem Jahed Petrone Bezuidenhout Suzanne Smith Kevin Land Emmanuel Iwuoha |
| author_facet | Keagan Pokpas Nazeem Jahed Petrone Bezuidenhout Suzanne Smith Kevin Land Emmanuel Iwuoha |
| author_sort | Keagan Pokpas |
| collection | DOAJ |
| description | Electrochemical detection of metal cations at paper-based sensors has been suggested as an attractive alternative to current spectroscopic and chromatographic detection techniques due to the ease of fabrication, disposable nature, and low cost. Herein, a novel carbon black (CB), dimethylglyoxime (DMG) ink is designed as an electrode modifier in conjunction with 3-electrode inkjet-printed paper substrates for use in the adsorptive stripping voltammetric electroanalysis of nickel cations in water samples. The developed method provides a novel, low-cost, rapid, and portable adsorptive stripping detection approach towards metal analysis in the absence of the commonly used toxic metallic films. The study demonstrated a novel approach to nickel detection at paper-based sensors and builds on previous work in the field of paper-based metal analysis by limiting the use of toxic metal films. The device sensitivity is improved by increasing the active surface area, electron transfer kinetics, and catalytic effects associated with non-conductive dimethylglyoxime films through CB nanoparticles for the first time and confirmed by electroanalysis. The first use of the CB-DMG ink allows for the selective preconcentration of analyte at the electrode surface without the use of toxic Mercury or Bismuth metallic films. Compared to similarly reported paper-based sensors, improved limits of detection (48 µg L-1), selectivity, and intermetallic interferences were achieved. The method was applied to the detection of nickel in water samples well below World Health Organization (WHO) standards. |
| first_indexed | 2024-12-18T11:23:49Z |
| format | Article |
| id | doaj.art-56c5d2860158481a9a0cad4450950186 |
| institution | Directory Open Access Journal |
| issn | 1847-9286 |
| language | English |
| last_indexed | 2024-12-18T11:23:49Z |
| publishDate | 2022-01-01 |
| publisher | International Association of Physical Chemists (IAPC) |
| record_format | Article |
| series | Journal of Electrochemical Science and Engineering |
| spelling | doaj.art-56c5d2860158481a9a0cad44509501862022-12-21T21:09:47ZengInternational Association of Physical Chemists (IAPC)Journal of Electrochemical Science and Engineering1847-92862022-01-0111310.5599/jese.1173Nickel contamination analysis at cost-effective silver printed paper-based electrodes based on carbon black dimethylglyoxime ink as electrode modifierKeagan Pokpas0Nazeem Jahed1Petrone Bezuidenhout2Suzanne Smith3Kevin Land4Emmanuel Iwuoha5SensorLab, Department of Chemistry, University of the Western Cape, Robert Sobukwe Road, Bellville, 7530, South AfricaSensorLab, Department of Chemistry, University of the Western Cape, Robert Sobukwe Road, Bellville, 7530, South Africa2Materials Science and Manufacturing, Council for Scientific and Industrial Research (CSIR), Meiring Naude Road, Brummeria, Pretoria 0001, South Africa 3Department of Electrical, Electronic, and Computer Engineering, University of Pretoria, Hatfield, 0028 South AfricaMaterials Science and Manufacturing, Council for Scientific and Industrial Research (CSIR), Meiring Naude Road, Brummeria, Pretoria 0001, South Africa and Department of Electrical, Electronic, and Computer Engineering, University of Pretoria, Hatfield, 0028 South AfricaMaterials Science and Manufacturing, Council for Scientific and Industrial Research (CSIR), Meiring Naude Road, Brummeria, Pretoria 0001, South Africa and Department of Electrical, Electronic, and Computer Engineering, University of Pretoria, Hatfield, 0028 South AfricaSensorLab, Department of Chemistry, University of the Western Cape, Robert Sobukwe Road, Bellville, 7530, South AfricaElectrochemical detection of metal cations at paper-based sensors has been suggested as an attractive alternative to current spectroscopic and chromatographic detection techniques due to the ease of fabrication, disposable nature, and low cost. Herein, a novel carbon black (CB), dimethylglyoxime (DMG) ink is designed as an electrode modifier in conjunction with 3-electrode inkjet-printed paper substrates for use in the adsorptive stripping voltammetric electroanalysis of nickel cations in water samples. The developed method provides a novel, low-cost, rapid, and portable adsorptive stripping detection approach towards metal analysis in the absence of the commonly used toxic metallic films. The study demonstrated a novel approach to nickel detection at paper-based sensors and builds on previous work in the field of paper-based metal analysis by limiting the use of toxic metal films. The device sensitivity is improved by increasing the active surface area, electron transfer kinetics, and catalytic effects associated with non-conductive dimethylglyoxime films through CB nanoparticles for the first time and confirmed by electroanalysis. The first use of the CB-DMG ink allows for the selective preconcentration of analyte at the electrode surface without the use of toxic Mercury or Bismuth metallic films. Compared to similarly reported paper-based sensors, improved limits of detection (48 µg L-1), selectivity, and intermetallic interferences were achieved. The method was applied to the detection of nickel in water samples well below World Health Organization (WHO) standards.https://pub.iapchem.org/ojs/index.php/JESE/article/view/1173Carbon blackdimethylglyoximenickelstripping voltammetry |
| spellingShingle | Keagan Pokpas Nazeem Jahed Petrone Bezuidenhout Suzanne Smith Kevin Land Emmanuel Iwuoha Nickel contamination analysis at cost-effective silver printed paper-based electrodes based on carbon black dimethylglyoxime ink as electrode modifier Journal of Electrochemical Science and Engineering Carbon black dimethylglyoxime nickel stripping voltammetry |
| title | Nickel contamination analysis at cost-effective silver printed paper-based electrodes based on carbon black dimethylglyoxime ink as electrode modifier |
| title_full | Nickel contamination analysis at cost-effective silver printed paper-based electrodes based on carbon black dimethylglyoxime ink as electrode modifier |
| title_fullStr | Nickel contamination analysis at cost-effective silver printed paper-based electrodes based on carbon black dimethylglyoxime ink as electrode modifier |
| title_full_unstemmed | Nickel contamination analysis at cost-effective silver printed paper-based electrodes based on carbon black dimethylglyoxime ink as electrode modifier |
| title_short | Nickel contamination analysis at cost-effective silver printed paper-based electrodes based on carbon black dimethylglyoxime ink as electrode modifier |
| title_sort | nickel contamination analysis at cost effective silver printed paper based electrodes based on carbon black dimethylglyoxime ink as electrode modifier |
| topic | Carbon black dimethylglyoxime nickel stripping voltammetry |
| url | https://pub.iapchem.org/ojs/index.php/JESE/article/view/1173 |
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