Graphite electrode modified with Indigo Carmine for Cu(II) ions detection
An electrochemical method for Cu(II) determination, based on its reaction with indigo carmine (IC) in alkaline medium and differential pulse voltammetry performed at graphite electrode, was elaborated. The experimental parameters affecting the Cu(II) - IC complex formation (reaction time and pH) wer...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2014-07-01
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| Series: | E3S Web of Conferences |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1051/e3sconf/20130141035 |
| Summary: | An electrochemical method for Cu(II) determination, based on its reaction with indigo carmine (IC) in alkaline medium and differential pulse voltammetry performed at graphite electrode, was elaborated. The experimental parameters affecting the Cu(II) - IC complex formation (reaction time and pH) were optimized. The linear range of the calibration curve, obtaining by representing the IC oxidation current (Eappl = 0.175 V vs. Ag/AgCl,KClsat) versus the Cu(II) concentration (pH 10), was from 10 μM up to 70 μM Cu (II) and the detection limit was 4.74 μM. |
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| ISSN: | 2267-1242 |