Solvent Extraction Spectrophotometric Determination of Vanadium Using Sodium Salt of 2-Mercapto-Pyridine-N-Oxide as a Reagent
A solvent-extraction spectrophotometric technique is proposed as a new method for determination of trace quantities of vanadium. Sodium salt of 2-mercapto-pyridine-N-oxide (thione) forms a complex with vanadium instantaneously. The purple 1:2 complex is formed of pH 2.3, easily extracted in chlorofo...
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| Format: | Article |
| Language: | English |
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Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
1993-06-01
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| Series: | Iranian Journal of Chemistry & Chemical Engineering |
| Subjects: | |
| Online Access: | http://www.ijcce.ac.ir/article_10927_d41d8cd98f00b204e9800998ecf8427e.pdf |
| _version_ | 1818206789645107200 |
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| author | Afsaneh Safavi Gholam Reza Khayatian Ali Massoumi |
| author_facet | Afsaneh Safavi Gholam Reza Khayatian Ali Massoumi |
| author_sort | Afsaneh Safavi |
| collection | DOAJ |
| description | A solvent-extraction spectrophotometric technique is proposed as a new method for determination of trace quantities of vanadium. Sodium salt of 2-mercapto-pyridine-N-oxide (thione) forms a complex with vanadium instantaneously. The purple 1:2 complex is formed of pH 2.3, easily extracted in chloroform and shows strong absorbance at 500 nm. The extracted complex is found to obey Beer's law in the concentration range of 0.3-18 mgmL-1 vanadium. The molar absorptivity of vanadium thione complex is 2.63´103 L.mol-1.cm-1 with a detection limit of 0.1 mgmL-1. The proposed method offers the advantage of sensitivity and relative freedom from interferences compared to the existing methods. This method is applied in the determination of vanadium in rutile. |
| first_indexed | 2024-12-12T04:18:37Z |
| format | Article |
| id | doaj.art-bdf11acdccfb4a428bcaa1e5c770f5dc |
| institution | Directory Open Access Journal |
| issn | 1021-9986 1021-9986 |
| language | English |
| last_indexed | 2024-12-12T04:18:37Z |
| publishDate | 1993-06-01 |
| publisher | Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR |
| record_format | Article |
| series | Iranian Journal of Chemistry & Chemical Engineering |
| spelling | doaj.art-bdf11acdccfb4a428bcaa1e5c770f5dc2022-12-22T00:38:23ZengIranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECRIranian Journal of Chemistry & Chemical Engineering1021-99861021-99861993-06-0112181110927Solvent Extraction Spectrophotometric Determination of Vanadium Using Sodium Salt of 2-Mercapto-Pyridine-N-Oxide as a ReagentAfsaneh Safavi0Gholam Reza Khayatian1Ali Massoumi2Department of Chemistry, Faculty of Sciences, Shiraz University, Shiraz, I.R. IRANDepartment of Chemistry, Faculty of Sciences, Shiraz University, Shiraz, I.R. IRANDepartment of Chemistry, Faculty of Sciences, Shiraz University, Shiraz, I.R. IRANA solvent-extraction spectrophotometric technique is proposed as a new method for determination of trace quantities of vanadium. Sodium salt of 2-mercapto-pyridine-N-oxide (thione) forms a complex with vanadium instantaneously. The purple 1:2 complex is formed of pH 2.3, easily extracted in chloroform and shows strong absorbance at 500 nm. The extracted complex is found to obey Beer's law in the concentration range of 0.3-18 mgmL-1 vanadium. The molar absorptivity of vanadium thione complex is 2.63´103 L.mol-1.cm-1 with a detection limit of 0.1 mgmL-1. The proposed method offers the advantage of sensitivity and relative freedom from interferences compared to the existing methods. This method is applied in the determination of vanadium in rutile.http://www.ijcce.ac.ir/article_10927_d41d8cd98f00b204e9800998ecf8427e.pdfvanadium determination2-mercapto-pyridine-n-oxidespectrophotometry |
| spellingShingle | Afsaneh Safavi Gholam Reza Khayatian Ali Massoumi Solvent Extraction Spectrophotometric Determination of Vanadium Using Sodium Salt of 2-Mercapto-Pyridine-N-Oxide as a Reagent Iranian Journal of Chemistry & Chemical Engineering vanadium determination 2-mercapto-pyridine-n-oxide spectrophotometry |
| title | Solvent Extraction Spectrophotometric Determination of Vanadium Using Sodium Salt of 2-Mercapto-Pyridine-N-Oxide as a Reagent |
| title_full | Solvent Extraction Spectrophotometric Determination of Vanadium Using Sodium Salt of 2-Mercapto-Pyridine-N-Oxide as a Reagent |
| title_fullStr | Solvent Extraction Spectrophotometric Determination of Vanadium Using Sodium Salt of 2-Mercapto-Pyridine-N-Oxide as a Reagent |
| title_full_unstemmed | Solvent Extraction Spectrophotometric Determination of Vanadium Using Sodium Salt of 2-Mercapto-Pyridine-N-Oxide as a Reagent |
| title_short | Solvent Extraction Spectrophotometric Determination of Vanadium Using Sodium Salt of 2-Mercapto-Pyridine-N-Oxide as a Reagent |
| title_sort | solvent extraction spectrophotometric determination of vanadium using sodium salt of 2 mercapto pyridine n oxide as a reagent |
| topic | vanadium determination 2-mercapto-pyridine-n-oxide spectrophotometry |
| url | http://www.ijcce.ac.ir/article_10927_d41d8cd98f00b204e9800998ecf8427e.pdf |
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