Physics
Scientific paper
Feb 1949
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1949natur.163..290s&link_type=abstract
Nature, Volume 163, Issue 4138, pp. 290-291 (1949).
Physics
2
Scientific paper
BY means of a capillary greatly restricted in the stem but with an orifice radius of 108 µ, it has been found possible to study current - time and current - voltage curves for single mercury drops with ordinary polarographic equipment-a Cambridge polarograph with photographic recording. Drop-times in a given solution could be varied between 16 sec. and 8 min. and were reproducible. The drop-weight in 0.1 N potassium chloride was about 28 mgm. The results show the change in character of current - time curves at constant voltage as the voltage is altered, give accurately measurable values for current - time relations during cathodic reduction, and indicate a new use for the polarograph in quantitative analysis by reason of the appearance of non-suppressible maxima on current - voltage curves.
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