FIELD: chemistry.
SUBSTANCE: concentration of pentaerythritol in aqueous solutions is determined using a solution with pentaerythritol content of 1-100 100 mg/dm3. The method includes determining pentaerythritol concentration therein at spectrophotometric detector wavelength of 190 nm. The eluent used is 0.0002 M sulphuric acid solution in deionised water. A column of weakly cross-linked styrene divinylbenzene resins is used.
EFFECT: shorter time for determining a chemical substance in water, simplifying the process while maintaining the quality of determination.
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