Evaluation of -Alkyl-bis--aminobenzamide Receptors for the Determination and Separation of Metal Ions by Fluorescence, UV-Visible Spectrometry and Zeta Potential.

This paper presents the synthesis and evaluation of physicochemical behavior of a new series of -alkyl-bis--aminobenzamides (BOABs) in aqueous solution. The study was targeted to the complexing capacity of five metal ions (Fe, Cu, Cd, Hg and Pb) of environmental concern as the medullar principle of a liquid phase sensor for its application in the determination of these metal ions due to its versatility of use. Molecular fluorescence, UV-visible and Zeta potential were measured for five BOABs and the effect of alkyl groups with different central chain length ( = 3, 4, 6, 8 and 10) on physicochemical performance determined.