Some effects in polarography produced by specific adsorption of the oxidised form of the depolarizer are discussed. It is suggested that this adsorption may lead to maxima in d.c. polarography when the depolarizer concentration is small and the solution has a high electrical conductivity. In “normal” pulse polarography specific adsorption of the oxidised form of the depolarizer may produce a maximum on the polarographic wave which is not basically due to streaming of the solution. Specific adsorption also leads to an increase in sensitivity in a.c. polarography and in R.F. polarography it produces asymmetry in the wave. Experimental results for lead ion in HClO4 solutions containing varying amounts of Br− ion suggest that as the concentration of Br− increases, although the adsorbed species is probably at first PbBr+, eventually undissooiated PbBr2 is strongly adsorbed.

Effects in polarography attributable to specific adsorption of depolarizers

Influence of anion-induced adsorption on half-wave potentials and other polarographic characteristics

Die bedeutung der adsorption in der polarographie

Catalytic Polarographic Current of Certain Nickel(II) Complexes. Application to the Analysis of Certain Organic Compounds Containing Basic Nitrogen.

The catalytic polarographic current of a metal complex: II. The nickel(II)-o-phenylenediamine system

Maxima on current-voltage curves. Part I. Electrolysis of nickel salt solutions with the mercury dropping cathode

In this paper, we describe the relevance of diagnosing the lining condition of steel ladles in metallurgical facilities. Accidents with steel ladles lead to losses and different types of damage in iron and steel works. We developed an algorithm for recognizing thermograms of steel ladles to identify burnout zones in the lining based on the technology and design of neural networks. A diagnostic system structure for automated evaluating of the technical conditions of steel ladles without taking them out of service has been developed and described.

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N. V. Emelianova

Papers

Maxima on current-voltage curves. Part I. Electrolysis of nickel salt solutions with the mercury dropping cathode

Information System for Diagnosing the Condition of the Complex Structures Based on Neural Networks