Fast Electrochemical Characterization of Historical Glasses Using Carbon Screen-Printed Electrodes and Ultrasonic Assisted Sampling

Fast Electrochemical Characterization of Historical Glasses Using Carbon Screen-Printed Electrodes and Ultrasonic Assisted Sampling

A new method for lead oxide (PbO) analysis in glasses, using a carbon screen printed electrode (SPE) is proposed. A suspension of the powdered glass sample in nitric acid is prepared using an ultrasonic probe, 100 µL of slurry are deposited on the SPE and the voltammetric measurement is carried out....

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Veröffentlicht in:Electroanalysis (New York, N.Y.) N.Y.), 2011-02, Vol.23 (2), p.521-528
Hauptverfasser: Palomar, T., García-Heras, M., Villegas, M. A., Sevilla, M. T.
Format: Artikel
Sprache:eng
Schlagworte:
Carbon
Deposition
Electrodes
Glass
Lead oxide determination
Nitric acid
Sampling
Screen printed electrode
Screens
Slurries
Ultrasonic sampling
Voltammetry
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Zusammenfassung:A new method for lead oxide (PbO) analysis in glasses, using a carbon screen printed electrode (SPE) is proposed. A suspension of the powdered glass sample in nitric acid is prepared using an ultrasonic probe, 100 µL of slurry are deposited on the SPE and the voltammetric measurement is carried out. Structural information of PbO in the glass matrix is obtained by CV. Lead quantification is performed by DPV. In the best conditions a LOD of 2.30 wt% of PbO was obtained. The method has been applied with good results in the analysis of historical glasses samples.
ISSN:1040-0397
1521-4109
1521-4109
DOI:10.1002/elan.201000408