Determination of ethanol concentration in tinctures

Jurga Bernatonienė, Rūta Bernatonienė, Algis Baranauskas

Department of Pharmacy, Kaunas University of Medicine, Lithuania

Key words: tinctures, alcohol aethylicus.

Summary. Results are stated summing up the data of experimental verification of the technique used for determining the alcoholic stength in tinctures. Propose three methods for determining alcohol in tinctures (method distilation, method G. K. Koliakova and method P. Balovoine).

Experiments showed, that the best method for determination of ethanol concentration in the tincture is the method of P. Balovoine based on dry residue and relative density.

Correspondence to J. Bernatonienė, Department of Pharmacy, Kaunas University of Medicine, A. Mickevičiaus 9, 3000 Kaunas, Lithuania

Received 30 May 2002, accepted 18 June 2003