| Authors | _ |
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| Journal | Analytical Letters |
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| Page number | 2026-2040 |
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| Serial number | 42 |
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| Volume number | 13 |
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| IF | 0.965 |
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| Paper Type | Full Paper |
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| Published At | 2009 |
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| Journal Grade | ISI |
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| Journal Type | Typographic |
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| Journal Country | Iran, Islamic Republic Of |
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| Journal Index | ISI،JCR،Scopus |
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Abstract
The potentiometric response characteristics of a new copper(II) ion-selective PVC membrane electrode based on erythromycin ethyl succinate (EES) as ionophore were investigated. The electrode exhibited a Nernstian response to Cu2+ ions over the activity range of 1.5 × 10−2 to 2.0 × 10−6 mol L−1 with a limit of detection of 6.3 × 10−7 mol L−1. Stable potentials were obtained in the pH range of 5.5–6.5. The potentiometric selectivity coefficients were calculated by using fixed interference method and revealed no important interferences except for Ag+. This electrode was successfully applied as an indicator electrode in determination of copper ions in real water samples.
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