Physics
Scientific paper
Apr 1946
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1946natur.157..520r&link_type=abstract
Nature, Volume 157, Issue 3990, pp. 520 (1946).
Physics
Scientific paper
Lingane and Loveridge1 have recently emphasized the desirability of using a capillary electrode with drop-time between one and six seconds in polarographic work. For a given tube, the -drop-time (τ) is inversely proportional to the rate of flow of mercury (m), which may be increased by altering the height of the mercury reservoir or the dimensions of the capillary. The polarographic sensitivity (iD/C) is proportional to m2/3τ/1/6, or, in terms of the rate of increase of surface area of the drop . If the rate of flow of mercury is increased sufficiently, the mercury no longer issues from the orifice in discrete drops, but in a fine stream. It has been possible, however, by constructing a capillary tube with orifice larger than the bore higher in the tube, to use an increased rate of flow of mercury without simultaneously increasing the drop-time.
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