1995•Collection of Czechoslovak Chemical CommunicationsRequires access

Polarographic Determination of 7-Diethylamino-4-methylcoumarin

Jiřı́ Barek, Roman Hrnčíř, Josino Costa Moreira

Abstract

The polarographic behaviour of the title optical whitening agent was studied in aqueous-methanolic solutions. Conditions for its quantitation were found within the concentration regions of 10 to 100 μmol l-1 by tast polarography, 1 to 100 μmol l-1 by differential pulse polarography on the conventional dropping mercury electrode, and 0.1 to 10 μmol l-1 by differential pulse polarography on a static mercury drop electrode. The analytical procedures developed were applied to the determination of the compound in technical products.

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Key concepts: Polarography, Dropping mercury electrode, Chemistry, Mercury (programming language), Aqueous solution, Electrode, Electrochemistry, Drop (telecommunication)