Review of Polarography

Pulse Polarography - Theory and Application

Janet Osteryoung, Kiyoshi Hasebe

1976 Volume 22 Issue 1-2 Pages 1-25
Published: 1976
Released on J-STAGE: March 01, 2011

DOIhttps://doi.org/10.5189/revpolarography.22.1

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Classical do polarography has been used widely for chemical analysis for both inorganic and organic compounds, and has an extensive literature (1). However, do polarography is not satisfactory at concentrations below about 10^-5M, and resolution becomes very poor in the presence of a relatively large concentration of a more easily reduced depolarizer. For the purposes of improvement in sensitivity and resolution, a number of variations on do polarography have been developed (2). One of the best of these variations is pulse polarography. Pulse polarography was first developed by Barker (3) as the outgrowth of his work with square wave polarography. Several general articles on pulse polarography have been published (4-7). We present here the theory and applications of pulse polarography from an analytical point of view.

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Polarographic Evidence for the Reduction of Nitrite to Nitrogen Monoxide by Iron(II) Ions in Neutral Buffer Solutions and Characteristics of Cathodic Waves of Nitrogen Monoxide in the Presence of Iron Ions and Citrate

Yasuhiko Komatsu, Masuro Yamaguchi, Masanosuke Takagi

1976 Volume 22 Issue 1-2 Pages 27-32
Published: 1976
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.5189/revpolarography.22.27

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The reduction of NO₂^- to NO by Fe²⁺ in neutral buffer solutions containing excess citrate has been substantiated polarographically. Nitrogen monoxide exhibited three cathodic waves having a characteristic maximum in the presence of iron ions and citrate. The two waves ( E_1/2s=-0.56 and -0.75 V vs SCE at pH 7) were of kinetic current, whereas the third wave(E=_1/2=10V) having a maximum was a diffusion-controlled one. The NO concentration dependence of the limiting currents of the three waves showed a relation with the form of Langmuir's adsorption isotherm.

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Simple Device for Precise Automatic Recording of Electrocapillary Curves

Atsuyoshi Saito

1976 Volume 22 Issue 1-2 Pages 33-37
Published: 1976
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.5189/revpolarography.22.33

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[in Japanese]

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