Alternating current and direct current polarography in concentrated hydrofluoric acid solutions with a teflon dropping mercury electrode

1972 ◽  
Vol 44 (3) ◽  
pp. 590-592 ◽  
Author(s):  
A. M. Bond ◽  
T. A. O'Donnell
Keyword(s):  
Direct Current ◽  
Hydrofluoric Acid ◽  
Mercury Electrode ◽  
Alternating Current ◽  
Acid Solutions ◽  
Dropping Mercury Electrode

The rapidly dropping mercury electrode in direct current and alternating current polarography

1959 ◽  
Vol 20 ◽  
pp. 573-580 ◽  
Author(s):  
Nobuyuki Tanaka ◽  
Reita Tamamushi ◽  
Mutsuo Kodama
Keyword(s):  
Direct Current ◽  
Mercury Electrode ◽  
Alternating Current ◽  
Dropping Mercury Electrode

Alternating current polarography of Organic compounds. IV. Perinaphthenone

1955 ◽  
Vol 8 (4) ◽  
pp. 480 ◽  
Author(s):  
B Breyer ◽  
HH Bauer
Keyword(s):  
Organic Compounds ◽  
Mercury Electrode ◽  
Alternating Current ◽  
Multilayer Adsorption ◽  
Adsorbed Film ◽  
Polarographic Wave ◽  
Dropping Mercury Electrode

The behaviour of perinaphthenone at the dropping mercury electrode has been investigated by the combined techniques of conventional (D.C.) and alternating current (A.C.) polarography. Two D.C. steps were observed, but an A.C. polarographic wave was found only at the potential of the more positive D.C. step. Two tensammetric waves were also seen, one of which appears to be the outcome of multilayer adsorption or of a change in state of the adsorbed film.

Alternating current and direct current voltammetry with a mercury pool electrode in concentrated hydrofluoric acid

1972 ◽  
Vol 44 (3) ◽  
pp. 464-467 ◽  
Author(s):  
A. M. Bond ◽  
T. A. O'Donnell ◽  
R. J. Taylor
Keyword(s):  
Direct Current ◽  
Hydrofluoric Acid ◽  
Alternating Current

Retardation of Cd2+and Zn2+ discharge at the dropping mercury electrode by adsorbed phenyl substituted phosphonium cations

1988 ◽  
Vol 66 (5) ◽  
pp. 1053-1058 ◽  
Author(s):  
A. Anastopoulos ◽  
A. Christodoulou ◽  
I. Moumtzis
Keyword(s):  
Direct Current ◽  
Mercury Electrode ◽  
Capacitance Measurements ◽  
Adsorption Characteristics ◽  
Dropping Mercury Electrode ◽  
Activated Complex ◽  
Phosphonium Cations

The effect of adsorbed propargyltriphenyl- and vinyltriphenylphosphonium cations on the discharge of Cd2+ and Zn2+ at dropping mercury electrode is studied by direct current polarographic measurements. Adsorption characteristics are determined by capacitance measurements. The size parameters of the activated complex and the surfactant particles are derived and an elucidation of the mechanism of the inhibited reaction is attempted.

Theory of alternating current polarography. I. Equation of the reversible AC polarographic wave

1954 ◽  
Vol 7 (3) ◽  
pp. 225 ◽  
Author(s):  
B Breyer ◽  
S Hacobian
Keyword(s):  
Mercury Electrode ◽  
Inorganic Ions ◽  
Alternating Current ◽  
Polarographic Wave ◽  
Dropping Mercury Electrode ◽  
Concentration Changes ◽  
In Virtue Of ◽  
Alternating Voltage ◽  
Polarographic Current

An equation for the A.C. polarographic current is derived from considerations of concentration changes produced at the dropping mercury electrode in virtue of the superposition of a small sinusoidal alternating voltage onto the direct potential, for the case of reversibly reduced inorganic ions. The equation predicts the magnitude of the A.C. polarographic current at any point on the polarogram.

Alternating current polarography of organic compounds. V. Quantitative treatment of the adsorption process

1956 ◽  
Vol 9 (1) ◽  
pp. 1 ◽  
Author(s):  
B Breyer ◽  
HH Bauer
Keyword(s):  
Organic Compounds ◽  
Adsorption Process ◽  
Adsorption Equilibrium ◽  
Mercury Electrode ◽  
Alternating Current ◽  
Qualitative Explanation ◽  
Calibration Curves ◽  
Adsorbent Surface ◽  
Dropping Mercury Electrode ◽  
Quantitative Treatment

Equations are derived to express the adsorption equilibrium subsisting at an adsorbent surface in the presence of two adsorbable species. These equations are applied to the case of the reduction of organic compounds at the dropping mercury electrode. It is well known that adsorption at the electrode can produce irreversibility in the D.C. step, and a qualitative explanation is provided. The same treatment is used to explain the shape of the A.C. calibration curves.

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