Determination of indium by adsorptive stripping voltammetry at the bismuth film electrode using combined electrode system facilitating medium exchange
A novel method of determining indium has been described in this article which uses adsorptive stripping voltammetry (AdSV) and 4-(2-pyridylazo)-resorcinol (PAR) as a chelating agent or as the preconcentration agent. The measurements were performed using square-wave voltammetry by using a combined el...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Online Access: | https://hdl.handle.net/10356/174658 |
| _version_ | 1811677119972900864 |
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| author | Martynov, Leonid Yu, Sadova, Maria K, Sakharov, Konstantin A, Yashtulov, Nikolai A, Zaytsev, Nikolay K, |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Martynov, Leonid Yu, Sadova, Maria K, Sakharov, Konstantin A, Yashtulov, Nikolai A, Zaytsev, Nikolay K, |
| author_sort | Martynov, Leonid Yu, |
| collection | NTU |
| description | A novel method of determining indium has been described in this article which uses adsorptive stripping voltammetry (AdSV) and 4-(2-pyridylazo)-resorcinol (PAR) as a chelating agent or as the preconcentration agent. The measurements were performed using square-wave voltammetry by using a combined electrode system, which allows for preconcentration and stripping without opening the circuit. Ex situ plated bismuth film electrode (BiFE) was used as the working electrode. A potential-time program was developed for the inversion cycle stages based on the various factors that affect the magnitude of the inversion signal. The calibration curve was linear in a concentration range of 2·10-7 to 4·10-6 М when the pH is 4.8, accumulation potential is -700 mV, and PAR concentration is 1·10-4 M. The detection limit for the 3σ criterion with an accumulation time of 120 s was 3.5·10-9 М. Several interferences caused by Tl(I), Zn(II), Cu(II), Pb(II), Co(II), Ni(II), Mn(II), Fe(III), Cr(III) ions have been studied, and it has been shown that medium exchange procedure can effectively eliminate some interferences. It was demonstrated that the method can be applied to the determination of indium in tap water and in ITO glass sample. |
| first_indexed | 2024-10-01T02:32:18Z |
| format | Journal Article |
| id | ntu-10356/174658 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:32:18Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1746582024-04-12T15:48:03Z Determination of indium by adsorptive stripping voltammetry at the bismuth film electrode using combined electrode system facilitating medium exchange Martynov, Leonid Yu, Sadova, Maria K, Sakharov, Konstantin A, Yashtulov, Nikolai A, Zaytsev, Nikolay K, School of Materials Science and Engineering Engineering Adsorptive stripping voltammetry Indium A novel method of determining indium has been described in this article which uses adsorptive stripping voltammetry (AdSV) and 4-(2-pyridylazo)-resorcinol (PAR) as a chelating agent or as the preconcentration agent. The measurements were performed using square-wave voltammetry by using a combined electrode system, which allows for preconcentration and stripping without opening the circuit. Ex situ plated bismuth film electrode (BiFE) was used as the working electrode. A potential-time program was developed for the inversion cycle stages based on the various factors that affect the magnitude of the inversion signal. The calibration curve was linear in a concentration range of 2·10-7 to 4·10-6 М when the pH is 4.8, accumulation potential is -700 mV, and PAR concentration is 1·10-4 M. The detection limit for the 3σ criterion with an accumulation time of 120 s was 3.5·10-9 М. Several interferences caused by Tl(I), Zn(II), Cu(II), Pb(II), Co(II), Ni(II), Mn(II), Fe(III), Cr(III) ions have been studied, and it has been shown that medium exchange procedure can effectively eliminate some interferences. It was demonstrated that the method can be applied to the determination of indium in tap water and in ITO glass sample. Submitted/Accepted version This research was carried out using Russian Federation state budget funds for the state procurement for 2023 year N◦ FSFZ-2023-0003 and Singapore grant MAR 04INS000458C150OOE01. 2024-04-07T03:36:02Z 2024-04-07T03:36:02Z 2024 Journal Article Martynov, L. Y., Sadova, M. K., Sakharov, K. A., Yashtulov, N. A. & Zaytsev, N. K. (2024). Determination of indium by adsorptive stripping voltammetry at the bismuth film electrode using combined electrode system facilitating medium exchange. Talanta, 271, 125680-. https://dx.doi.org/10.1016/j.talanta.2024.125680 0039-9140 https://hdl.handle.net/10356/174658 10.1016/j.talanta.2024.125680 38277966 2-s2.0-85183583253 271 125680 en Talanta © 2024 Elsevier B.V. All rights reserved. This article may be downloaded for personal use only. Any other use requires prior permission of the copyright holder. The Version of Record is available online at http://doi.org/10.1016/j.talanta.2024.125680. application/pdf |
| spellingShingle | Engineering Adsorptive stripping voltammetry Indium Martynov, Leonid Yu, Sadova, Maria K, Sakharov, Konstantin A, Yashtulov, Nikolai A, Zaytsev, Nikolay K, Determination of indium by adsorptive stripping voltammetry at the bismuth film electrode using combined electrode system facilitating medium exchange |
| title | Determination of indium by adsorptive stripping voltammetry at the bismuth film electrode using combined electrode system facilitating medium exchange |
| title_full | Determination of indium by adsorptive stripping voltammetry at the bismuth film electrode using combined electrode system facilitating medium exchange |
| title_fullStr | Determination of indium by adsorptive stripping voltammetry at the bismuth film electrode using combined electrode system facilitating medium exchange |
| title_full_unstemmed | Determination of indium by adsorptive stripping voltammetry at the bismuth film electrode using combined electrode system facilitating medium exchange |
| title_short | Determination of indium by adsorptive stripping voltammetry at the bismuth film electrode using combined electrode system facilitating medium exchange |
| title_sort | determination of indium by adsorptive stripping voltammetry at the bismuth film electrode using combined electrode system facilitating medium exchange |
| topic | Engineering Adsorptive stripping voltammetry Indium |
| url | https://hdl.handle.net/10356/174658 |
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