Catalytic auto-oxidation of o-hydroxyphenylthiourea by Iridium(III): A photometric sensing platform for Iridium
o-Hydroxyphenylthiourea (HPTU) undergoes oxidative dimerization to form a yellow-colored disulfide in the presence of Iridium(III), a process significantly enhanced by the activator 1,10-phenanthroline. This catalytic oxidation was monitored spectrophotometrically at 416 nm under ambient conditions...
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| Language: | English |
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Elsevier
2024-12-01
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| Series: | Chemistry of Inorganic Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949746924000491 |
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| author | A. Sunil Ashish Deep Chettri S. Jagadeeswara Rao |
| author_facet | A. Sunil Ashish Deep Chettri S. Jagadeeswara Rao |
| author_sort | A. Sunil |
| collection | DOAJ |
| description | o-Hydroxyphenylthiourea (HPTU) undergoes oxidative dimerization to form a yellow-colored disulfide in the presence of Iridium(III), a process significantly enhanced by the activator 1,10-phenanthroline. This catalytic oxidation was monitored spectrophotometrically at 416 nm under ambient conditions, employing both tangent and fixed-time methods. The method's performance was optimized by investigating factors like pH, reagent concentration, temperature, and potential interferents. A linear relationship between the rate of reaction and Iridium(III) concentration was observed in the range of 0.001 ng–5.0 mg of Iridium per mL, enabling the detection of Iridium(III) down to 0.001 ng/mL at pH 11.7. The method's simplicity, cost-effectiveness, and sensitivity make it suitable for the determination of Iridium(III) in real-time samples, eliminating the need for additional reagents, complex procedures, or preconcentration steps. |
| format | Article |
| id | doaj-art-76f2b85850a84d3da1911e97f3025a5c |
| institution | OA Journals |
| issn | 2949-7469 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemistry of Inorganic Materials |
| spelling | doaj-art-76f2b85850a84d3da1911e97f3025a5c2025-08-20T02:31:08ZengElsevierChemistry of Inorganic Materials2949-74692024-12-01410008110.1016/j.cinorg.2024.100081Catalytic auto-oxidation of o-hydroxyphenylthiourea by Iridium(III): A photometric sensing platform for IridiumA. Sunil0Ashish Deep Chettri1S. Jagadeeswara Rao2Corresponding author.; Department of Chemistry, Sri Sathya Sai Institute of Higher Learning (Deemed to be University), Prasanthi Nilayam Campus, Puttaparthi, Sri Sathya Sai District, Pin-515134, Andhra Pradesh, IndiaDepartment of Chemistry, Sri Sathya Sai Institute of Higher Learning (Deemed to be University), Prasanthi Nilayam Campus, Puttaparthi, Sri Sathya Sai District, Pin-515134, Andhra Pradesh, IndiaDepartment of Chemistry, Sri Sathya Sai Institute of Higher Learning (Deemed to be University), Prasanthi Nilayam Campus, Puttaparthi, Sri Sathya Sai District, Pin-515134, Andhra Pradesh, Indiao-Hydroxyphenylthiourea (HPTU) undergoes oxidative dimerization to form a yellow-colored disulfide in the presence of Iridium(III), a process significantly enhanced by the activator 1,10-phenanthroline. This catalytic oxidation was monitored spectrophotometrically at 416 nm under ambient conditions, employing both tangent and fixed-time methods. The method's performance was optimized by investigating factors like pH, reagent concentration, temperature, and potential interferents. A linear relationship between the rate of reaction and Iridium(III) concentration was observed in the range of 0.001 ng–5.0 mg of Iridium per mL, enabling the detection of Iridium(III) down to 0.001 ng/mL at pH 11.7. The method's simplicity, cost-effectiveness, and sensitivity make it suitable for the determination of Iridium(III) in real-time samples, eliminating the need for additional reagents, complex procedures, or preconcentration steps.http://www.sciencedirect.com/science/article/pii/S2949746924000491HPTUIridium(III)Spectrophotometric1,10-Phenanthroline |
| spellingShingle | A. Sunil Ashish Deep Chettri S. Jagadeeswara Rao Catalytic auto-oxidation of o-hydroxyphenylthiourea by Iridium(III): A photometric sensing platform for Iridium Chemistry of Inorganic Materials HPTU Iridium(III) Spectrophotometric 1,10-Phenanthroline |
| title | Catalytic auto-oxidation of o-hydroxyphenylthiourea by Iridium(III): A photometric sensing platform for Iridium |
| title_full | Catalytic auto-oxidation of o-hydroxyphenylthiourea by Iridium(III): A photometric sensing platform for Iridium |
| title_fullStr | Catalytic auto-oxidation of o-hydroxyphenylthiourea by Iridium(III): A photometric sensing platform for Iridium |
| title_full_unstemmed | Catalytic auto-oxidation of o-hydroxyphenylthiourea by Iridium(III): A photometric sensing platform for Iridium |
| title_short | Catalytic auto-oxidation of o-hydroxyphenylthiourea by Iridium(III): A photometric sensing platform for Iridium |
| title_sort | catalytic auto oxidation of o hydroxyphenylthiourea by iridium iii a photometric sensing platform for iridium |
| topic | HPTU Iridium(III) Spectrophotometric 1,10-Phenanthroline |
| url | http://www.sciencedirect.com/science/article/pii/S2949746924000491 |
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