Collect. Czech. Chem. Commun. 1993, 58, 315-319

Investigation of the Conditions of Extraction of Ion-Associates of 3-Quinuclidinyl Benzilate with Acidic Dyes

Emil Halámek and Zbyněk Kobliha

Department of Chemistry, The Military College of Ground Forces, 682 03 Vyškov, Czech Republic


Ion-associates of 3-quinuclidinyl benzilate (BZ) with thirteen acidic dyes were examined after their extraction into chloroform. Based on spectrophotometric measurements, the optimum pH of the aqueous phase was established and the extraction yields, distribution ratios, conditional extraction constants and limits of detection were calculated. Bromocresol green and metanil yellow are suggested as reagents for the analysis of BZ.