- Volume 11 Issue 3
A simple rotating micro mercury electrode is constructed in such a way that the mercury surface can be renewed quite easily with reasonable reproducibility. It consists of a glass capillary of about 1mm diameter connected to a mercury filled tube by means of a ground joint that allows mercury flow at a particular relative position only, and the electrical connection between the two parts is made by a platinum wire fused in the bottom of the latter. Thus the mercury surface exposed at the tip of the capillary replaces the platinum tip of the usual platinum micro electrode; however, the capillary has to be bent so that the tip directs upwards. It has been found to be a convenient electrode in the amperometric titration in strongly acidic media. Furthermore, it has been advantageously used in the alternating-current polarography because of its smaller electrical resistance than the ordinary dropping mercury electrodes. It also can be used as a stationary mercury electrode in fast scanning polarography.
- J. Am. Chem. Soc. v.74 T.S. Lee
- Anal. Chem. v.27 P. Arthur;J. C. Komyathy;R. F. Manes;H. W. Vaughan
- Anal. Chem. v.25 C.A. Streuli;W.D. Cooke
- Anal. Chem. v.21 D. Rosie;W.D. Cooke
- New Instrumental Methods in Electrochemistry P. Delanay