Abstract
THE presence and concentration of methionine in aqueous media can be quickly determined by a simple voltammetric method. The solution for electrolysis must be acidic and must contain a moderate amount of chloride ion. Using a platinum microelectrode as the working anode and a saturated calomel electrode (SCE) as the cathode, anodic current–voltage curves with limiting currents proportional to the methionine concentration are obtained. The voltammetric waves are well developed between +0.7 and +1.0 V against the SCE.
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References
Lingane, J. J., Electroanalytical Chemistry, second ed., 555 (Interscience Publishers, Inc., New York, 1958).
Kolthoff, T. M., and Lingane, J. J., Polarograp, second ed., 1, 403 (Interscience Publishers, New York, 1952).
Kolthoff, I. M., and Lingane, J. J., Polarography, second ed., 1, 400 (Interscience Publishers, New York, 1952).
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KYRIACOU, D. Rapid Voltammetric Determination of Methionine with a Platinum Electrode. Nature 211, 519–521 (1966). https://doi.org/10.1038/211519b0
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DOI: https://doi.org/10.1038/211519b0
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