SENZOR POTENŢIOMETRIC SALICILAT-SENZITIV PE BAZĂ DE PIVALAŢI TRINUCLEARI AI CROMULUI(III)
New salicylate-selective electrodes based on trinuclear chromium(III) pivalates are described. The electrodes were prepared by incorporating the ionophores into plasticized poly(vinylchloride) membranes. The electrode displays a linear –log [C7H6O3 -] vs emf response over the concentration range 3,...
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| Format: | Article |
| Language: | English |
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Moldova State University
2007-12-01
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| Series: | Studia Universitatis Moldaviae: Stiinte reale si ale naturii |
| Online Access: | https://ojs.studiamsu.md/index.php/stiinte_reale_naturii/article/view/233 |
| Summary: | New salicylate-selective electrodes based on trinuclear chromium(III) pivalates are described. The electrodes were prepared by incorporating the ionophores into plasticized poly(vinylchloride) membranes. The electrode displays a linear –log [C7H6O3 -] vs emf response over the concentration range 3,2.10-6 – 1.10-1 M in buffer solutions of pH 7, with a Nernstian slope of 56 mV/decade of salicylate concentration. The electrodes exhibit fast response times and micromolar detection limits and could be used over a wide pH range of 7 – 11. The proposed electrode was applied to determine the salicylates in real samples.
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| ISSN: | 1814-3237 1857-498X |