The electrochemical behaviour of nitrazepam at a screen-printed carbon electrode and its determination in beverages by adsorptive stripping voltammetry
McGuire, N. D., Honeychurch, K. C. and Hart, J. P. (2009) The electrochemical behaviour of nitrazepam at a screen-printed carbon electrode and its determination in beverages by adsorptive stripping voltammetry. Electroanalysis, 21 (19). pp. 2165-2170. ISSN 1040-0397 Available from: http://eprints.uwe.ac.uk/16638
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Publisher's URL: http://dx.doi.org/10.1002/elan.200904667
The cyclic voltammetric behavior of nitrazepam was investigated at screen-printed carbon electrodes over the range -1.5 V to +1.5 V. Two reduction peaks were observable on the negative scan, at -0.7 V, and -1.2 V using pH 6 buffer. On the return scan a single oxidation peak was obtained at -0.05 V. For quantitative analysis of beverages, we developed an anodic adsorptive stripping voltammetric method which required only dilution with buffer. The identification of nitrazepam and flunitrazepam could be achieved using cyclic voltammetry.
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