Abstract
A platinum electrode was illuminated with an intermittent Ar+ laser beam in a flowing solution from the front side of the electrode. The current induced by this laser illumination was recorded as a function of electrode potential with a lock-in amplifier and was directly observed with an oscilloscope. Experimental results for the [Fe(CN)6]4-, [Fe(CN)6]3-, Fe2+ and Fe3+ solutions indicated that the laser heating of the electrode promotes or depresses the electron transfer process, depending on the standard entropy change of the electrode reaction, promotes the mass transfer process and induces adsorption or desorption of anions. Further, the induced current was proportional to the concentration and strongly depended on the chopping frequency and the flow rate. This laser electrochemical (LEC) detection can be used as a new electrochemical detector in electroanalytical chemistry.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
B. Miller, J. Electrochem. Soc., 130, 1639 (1983).
J. L. Valdes and B. Miller, J. Phys. Chem., 92, 525 (1988).
J. L. Valdes and B. Miller, J. Phys. Chem., 92, 4483 (1988).
J. L. Valdes and B. Miller, J. Ekctrochem. Soc., 135, 2223 (1988).
J. L. Valdes and B. Miller, J. Phys. Chem., 93, 7275 (1989).
V. A. Benderskii and G. I. Velichko, J. Electroanal. Chem. Interfacial Ekctrochem., 140, 1 (1982).
V. A. Benderskii, S. D. Babenko and A. G. Krivenko, J. Electroanal. Chem. Interfacial Ekctrochem., 86, 223 (1978).
J. F. Smalley, C. V. Krishnan, M. Goldman and S. W. Feldberg, J. Electroanal. Chem. Interfacial Ekctrochem., 248, 255 (1988).
J. F. Smalley, L. Geng and S. W. Feldberg, J. Electroanal. Chem. Interfacial Ekctrochem., 356, 181 (1993).
R. Peat, A. Riley, D. E. Williams and L. M. Peter, J. Ekctrochem. Soc, 136, 3352 (1989).
T. Hinoue, I. Watanabe and Y. Yokoyama, 54th Annual Meeting of the Japan Society for Analytical Chemistry, Ibaraki, June 1993, Abstr., No. 2A05, pp. 35 and 36.
M. Poon, R. L. McCreey and R. Engstrom, Anal. Chem., 60, 1725 (1988).
K. D. Sternitzke and R. L. MaCreery, Anal. Chem., 62, 1339 (1990).
D. E. Williams, A. R. J. Kucernak and R. Peat, Ekctrochim. Acta, 38, 57 and 71 (1993).
R. S. Hutton and D. E. Williams, J. Am. Chem. Soc, 116, 3453 (1994).
R. S. Hutton and D. E. Williams, J. Chem. Soc. Faraday Trans., 90, 345 (1994).
W. Huang and R. McCreery, J. Electroanal. Chem. Interfacial Ekctrochem., 326, 1 (1992).
“Lunge’s Handbook of Chemistry”, ed. J. A. Dean, p. (9)29, McGraw-Hill, New York, 1985.
J. O’M. Bockris and A. K. N. Reddy, “Modern Electrochemistry”, Vol. 2, p. 731, A Plenum/Rosetta edition, New York, 1973.
A. N. Frumkin, O. A. Petrii, Ekctrochim. Acta, 20, 347 (1975).
T. Izumi, Master’s Thesis, Osaka University, Osaka, Japan, 1991.
R. Tamamushi, “Kinetic Parameters of Electrode Reactions of Metallic Compounds’”, Butterworths, London, 1975.
A. T. Hubbard, R. M. Ishikawa and J. Katekaru, J. Ekctroanal. Chem. Interfacial Ekctrochem., 86, 271 (1978).
J. M. Elbicki, D. M. Morgan and S. G. Weber, Anal Chem., 56, 978 (1984).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Hinoue, T., Harui, R., Izumi, T. et al. Laser Electrochemical Detection Technique in a Flow System. ANAL. SCI. 11, 1–8 (1995). https://doi.org/10.2116/analsci.11.1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.2116/analsci.11.1