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Langhals, Heinz ORCID: 0000-0002-8038-4547 (1990): A Simple, Quick, and Precise Procedure for the Determination of Water in Organic Solvents. In: Analytical Letters, Vol. 23, No. 12: pp. 2243-2258
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Abstract

A procedure for the UV/VIS-spectroscopic determination of water by the use of a solvatochromic pyridiniumphenolate betaine is given. The water content of organic solvents is calculated by a two parameter equation from λmax of the dye. A typical, detection limit is of the order of 1 mg in 1 ml solvent for routine spectrometers. The parameters for the determination of water are given for a number of commonly used solvents.