|
I. V. Seliverstova, A. A. Ivanov, V. V. Severov
Ion-Exclusion
Determination of Hydroxycinnamic and Hydroxybenzoic Acids in Wines
Abstract
The regularities in the retention
of aromatic carboxylic acids conditions of single-column ion-exclusion
chromatography with spectrofotometric detection. The optimum conditions for
determining aromatic acids with spectrofotometric detection are chose. The
influence of eluants pH, detections wavelength on their determination was
studied. Analytical parameters of using method were determined. It is established
that solutions of 20 mM sulfuric acids are the most suitable eluants for
single-column ion-exclusion determination.
The developed technique was used for the qualitative and quantitative
analysis of the real objects. Wine samples produced by different technology
were qvaluated on the content of acids was determined.
Copyright (C) Chemistry Dept., Moscow State University, 2002
|
|
