Polarographic Estimation of Vitamin C

Details Polarographic Estimation of Vitamin C Polarographic Estimation of Vitamin C

Jul 1938

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1938natur.142...35k&link_type=abstract

Nature, Volume 142, Issue 3583, pp. 35 (1938).

Physics

Scientific paper

AQUEOUS solutions of vitamin C when electrolysed at the dropping mercury cathode do not produce any effect on the current-voltage curves. If, however, to a solution of vitamin C-freed from air-a mild oxidizing agent, such as cupric chloride, silver nitrate, gold chloride, ferric chloride or iodine is added, a polarographic `wave' appears on the current-voltage curve at - 1.60 v. (from the calomel zero). This `wave' has been shown to be due to the deposition of free hydrions liberated in the solution by the reaction:

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