Process for determining the composition of binary liquid mixture

Chemistry: analytical and immunological testing – Optical result

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436 40, G01N 3300, G01N 3318

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046770798

ABSTRACT:
The invention relates to a process for determining the composition of binary liquid mixtures. This process is characterized in that a solvatochromic compound is added to the sample to be analyzed, the solvatochromism band .lambda..sub.max is determined in the UV-spectrum, the E.sub.T -value (molar stimulation energy) of the solvatochromic substance is calculated and the concentration of the more polar component is determined in accordance with the following equation

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