Abstract

A method was proposed for estimating the total amount of organic substance at the air–water interface. The method combines sampling by the transfer of an organic film to the probe surface with the coulometric determination of the amount of oxygen consumed for the high-temperature oxidation of the sample in a solid-electrolyte analyzer. The effect of the composition of the film and the material of the probe on the transfer of model oil films under the conditions of fast withdrawal of the probe from water was studied. It was demonstrated that organic substance can be accumulated at the surface of the probe on multiple withdrawal.

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