Fig. 4 | Communications Chemistry

Fig. 4

From: Gas phase electrochemical analysis of amino acids and their fragments

Fig. 4

In situ Raman spectroscopy of the electrode surface under electrochemical control. a Voltammogram and potentiodynamic Raman peak height at 1560 cm−1, of a graphite working electrode held at constant potential for 1 minute, in flame plasma doped with pure water (voltammogram, light blue line, potentiodynamic, open squares) and 5 mM leucine (voltammogram, solid blue line; potentiodynamic, solid squares). Error bars indicate the standard error of three measurements. b The Raman spectra between 1500 and 1630 cm−1 (grey lines) which are fitted to a Gaussian function (red lines), held at potentials from −1 to −10 V vs. YSZR

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