A novel bulk optode for ultra-trace detection of antimony coupled with spectrophotometry in food and environmental samples
A novel bulk optode was modified for ultra-trace detection of antimony. The optode was synthesized by incorporating fabricated ionophore, 6-{4-(2,4-di-hydroxyphenyl)diazenyl)phenyl}-2-oxo-4-phenyl-1,2-dihydropyridine-3-carbo-nitrile (DDPODC), 3-octadecanoylimino-7-(diethyl‑amino)-1,2-benzophenoxa-zi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-08-01
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| Series: | Talanta Open |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666831923000188 |
| _version_ | 1797811040269893632 |
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| author | Islam M.I. Moustafa Alaa S. Amin Eman Darwish |
| author_facet | Islam M.I. Moustafa Alaa S. Amin Eman Darwish |
| author_sort | Islam M.I. Moustafa |
| collection | DOAJ |
| description | A novel bulk optode was modified for ultra-trace detection of antimony. The optode was synthesized by incorporating fabricated ionophore, 6-{4-(2,4-di-hydroxyphenyl)diazenyl)phenyl}-2-oxo-4-phenyl-1,2-dihydropyridine-3-carbo-nitrile (DDPODC), 3-octadecanoylimino-7-(diethyl‑amino)-1,2-benzophenoxa-zine (ETH5294) as a chromoionophore, sodium tetraphenyl borate (NaTPB) as an anionic additive, and dioctyladipate (DOA) as a plasticizer in a poly vinyl chloride (PVC) membrane. In determining Sb3+, various parameters were implemented. Spectrophotometric procedure (λmax of 661 nm) was applied to define Sb3+ within optimal conditions. The optode has a wide range of 2.5 × 10−8 to 4.0 × 10−5 M Sb3+ with the detection and quantification limits as low as 7.0 × 10−9 and 2.4 × 10−8 M, respectively. The response time of optode was 3.0 min, with a RSD% of 1.75% (for 2.0 × 10−5 M, n=6). A 0.15 M HCl solution could be used to regenerate the optode. The interfering ions were studied. It was revealed that the optode was highly selective to Sb3+ ions and had no significant response to common cations and anions. It can be appealed that the optode can specifically detect Sb3+ ions. The optode was favorable applied to assess total antimony ions after reduction of Sb5+ to Sb3+ using potassium iodide and ascorbic acid as reducing agents in various water, food and biological samples. |
| first_indexed | 2024-03-13T07:16:44Z |
| format | Article |
| id | doaj.art-1b515fe78eff4e45991d6cd8c39e0efb |
| institution | Directory Open Access Journal |
| issn | 2666-8319 |
| language | English |
| last_indexed | 2024-03-13T07:16:44Z |
| publishDate | 2023-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Talanta Open |
| spelling | doaj.art-1b515fe78eff4e45991d6cd8c39e0efb2023-06-05T04:13:16ZengElsevierTalanta Open2666-83192023-08-017100197A novel bulk optode for ultra-trace detection of antimony coupled with spectrophotometry in food and environmental samplesIslam M.I. Moustafa0Alaa S. Amin1Eman Darwish2Chemstry Department Faculty of Science, Benha University, Benha, EgyptChemstry Department Faculty of Science, Benha University, Benha, Egypt; Corresponding author.Chemistry Department Faculty of Science, Port Said University, Port Said, EgyptA novel bulk optode was modified for ultra-trace detection of antimony. The optode was synthesized by incorporating fabricated ionophore, 6-{4-(2,4-di-hydroxyphenyl)diazenyl)phenyl}-2-oxo-4-phenyl-1,2-dihydropyridine-3-carbo-nitrile (DDPODC), 3-octadecanoylimino-7-(diethyl‑amino)-1,2-benzophenoxa-zine (ETH5294) as a chromoionophore, sodium tetraphenyl borate (NaTPB) as an anionic additive, and dioctyladipate (DOA) as a plasticizer in a poly vinyl chloride (PVC) membrane. In determining Sb3+, various parameters were implemented. Spectrophotometric procedure (λmax of 661 nm) was applied to define Sb3+ within optimal conditions. The optode has a wide range of 2.5 × 10−8 to 4.0 × 10−5 M Sb3+ with the detection and quantification limits as low as 7.0 × 10−9 and 2.4 × 10−8 M, respectively. The response time of optode was 3.0 min, with a RSD% of 1.75% (for 2.0 × 10−5 M, n=6). A 0.15 M HCl solution could be used to regenerate the optode. The interfering ions were studied. It was revealed that the optode was highly selective to Sb3+ ions and had no significant response to common cations and anions. It can be appealed that the optode can specifically detect Sb3+ ions. The optode was favorable applied to assess total antimony ions after reduction of Sb5+ to Sb3+ using potassium iodide and ascorbic acid as reducing agents in various water, food and biological samples.http://www.sciencedirect.com/science/article/pii/S2666831923000188Optical sensorAntimony determinationPlasticized polyvinyl chloride membraneAzo dyesSpectrophotometryEnvironmental analysis |
| spellingShingle | Islam M.I. Moustafa Alaa S. Amin Eman Darwish A novel bulk optode for ultra-trace detection of antimony coupled with spectrophotometry in food and environmental samples Talanta Open Optical sensor Antimony determination Plasticized polyvinyl chloride membrane Azo dyes Spectrophotometry Environmental analysis |
| title | A novel bulk optode for ultra-trace detection of antimony coupled with spectrophotometry in food and environmental samples |
| title_full | A novel bulk optode for ultra-trace detection of antimony coupled with spectrophotometry in food and environmental samples |
| title_fullStr | A novel bulk optode for ultra-trace detection of antimony coupled with spectrophotometry in food and environmental samples |
| title_full_unstemmed | A novel bulk optode for ultra-trace detection of antimony coupled with spectrophotometry in food and environmental samples |
| title_short | A novel bulk optode for ultra-trace detection of antimony coupled with spectrophotometry in food and environmental samples |
| title_sort | novel bulk optode for ultra trace detection of antimony coupled with spectrophotometry in food and environmental samples |
| topic | Optical sensor Antimony determination Plasticized polyvinyl chloride membrane Azo dyes Spectrophotometry Environmental analysis |
| url | http://www.sciencedirect.com/science/article/pii/S2666831923000188 |
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