Collect. Czech. Chem. Commun. 1992, 57, 2279-2286

Study of the Conditions for Extraction of Toxic Organic Basis and Methods of Determination I. Extraction of Strychnine with Chlorinated Hydrocarbons

Ladislav Belickýa, Jan Součeka, Emil Halámeka and Josef Havelb

a Department of Chemistry, The Military College of Ground Forces, 682 03 Vyškov
b Department of Analytical Chemistry, Masaryk University, Masaryk University, 611 37 Brno


The conditions for the extraction of strychnine with 1,2,2-tetrachloroethane, chloroform, 1,2-dichloroethane and carbon tetrachloride were studied and described. The distribution and extraction constants were calculated for strychnine in selected solvents from the dependence of the extraction yield on the pH at various ionic strengths. In addition, a study was carried out of the extraction properties of the ion associates of strychnine with selected groups of azodyes with identical basic skeleton but different numbers of sulfo groups.