A. N. Lovyagin, L. A. Shevchenko, V. P. Kovalchuk Application of Ion Chromatography to the study of spirit drinks’ stability

2005 – Zurnal Hromatografichnogo Tovarystva – V. V – № 1. – P. 21-28

UDC 543.544

A. N. LOVYAGIN, L. A. SHEVCHENKO, V. P. KOVALCHUK 

APPLICATION OF ION CHROMATOGRAPHY TO THE STUDY OF SPIRIT DRINKS’  STABILITY - acticle

A possibility of the spirit drinks’ stability examination using ion chromatography was studied. The main metrological characteristics for the lithium, ammonium, sodium, potassium, calcium and magnesium determination were shown such as: standard error of estimate for the regression curve, Cochran test, pooled RSD and others. The limits of detection for the cations were no more than 0,05 mg·L^-1.

It was shown that ion chromatography could be used for the study of composition of precipitations, that allows predicting the stability of drinks or could be useful to examine the reasons of its decline. The precipitations in a winy drink and vodka were explored and their qualitative and quantitative compositions were determined. The total time of determination does not exceed  60 min.