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Details van artikel 30 van 59 gevonden artikelen
| Titel: | |
| Auteur: | |
| Verschenen in: |
Analytical letters |
| Paginering: | Jaargang 41 (2008) nr. 17 pagina's 3058-3073 |
| Jaar: |
2008-01 |
| Inhoud: |
Copper(Cu) and nickel(Ni) complexes of para-tolualdehydesemicarbazone (pTSC) were used as carrier for an thiocyanate ion-selective electrode. The Ni(II)pTSC demonstrated higher selectivity for thiocyanate ions with better performance than Cu(II)pTSC as carrier. The electrode shows a Nernstian slope of 58.8 ± 0.3 mV decade-1 with improved linear range of 1 × 10-2 to 1 × 10-7 M and a low detection limit of 1.25 × 10-7 M in the pH range of 3-10, giving a relatively fast response and reversibility within 10 s. The selectivity coefficient was calculated using matched potential method. The electrode worked well for nearly 3 months. The response mechanism is discussed by UV-visible spectroscopic technique. The electrodes were used in potentiometric titration of thiocyanate with silver nitrate. Further, the electrode was successfully applied to determine the thiocyanate content in physiological fluids. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 30 van 59 gevonden artikelen
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