Use of Copper (II) Ion-Selective Electrode and Gran's Plots in the Sequential Complexometric Determination of Copper (II), Zinc (II) and Iron (III)

Use of Copper (II) Ion-Selective Electrode and Gran's Plots in the Sequential Complexometric Determination of Copper (II), Zinc (II) and Iron (III)

A sequential chelometric determination of copper (II) and iron (III) is reported utilizing copper (II) ion-selective electrode (Cu-ISE) for detecting end points and Gran's plots for extending sensitivity to the level of 0.4 umole in 100 mL for each metal. A modified procedure is also suggested...

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Veröffentlicht in:Analytical letters 1984-01, Vol.17 (6), p.433-445
Hauptverfasser: Stella, R., Ganzerli Valentini, M. T., Borroni, P. A.
Format: Artikel
Sprache:eng
Schlagworte:
Analytical chemistry
Chemistry
copper
Copper determination
copper ion-selective electrode
Electrochemical methods
Exact sciences and technology
Gran's plots
iron determination
zinc and iron in sequence
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Zusammenfassung:A sequential chelometric determination of copper (II) and iron (III) is reported utilizing copper (II) ion-selective electrode (Cu-ISE) for detecting end points and Gran's plots for extending sensitivity to the level of 0.4 umole in 100 mL for each metal. A modified procedure is also suggested and described for samples in which interfering divalent ions, such as zinc (II), are present. Practical applications are reported.
ISSN:0003-2719
1532-236X
DOI:10.1080/00032718408065291