
I. H. I. HABIB287
electrode, reproducibility, without and with successive
cut off/polishing five times, is found to be 0.285% and
0.347%, respectively, for 2.46 µg/ml nitrite and using DP
mode.
It is concluded that the new and simple carbon paste
electrode modified with chitosan has been shown to offer
comparable performance to the more expensive glassy
carbon or diamond electrodes for the practical use to
analysis 2ions at trace concentrations in real samples
by anodic striping voltammetry with high sensitivity and
selectivity.
NO
4. Acknowledgements
Thanks are due to Volkswagen Stiftung, Kastanienallee
35, 30519 Hannover, Germany, for the financial support
of purchasing the Metrohm model 693 VA processor and
694 VA stand.
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