title: Biphasic electrospray ionization for the study of interfacial complexes.
abstract: Biphasic electrospray ionization (BESI) mass spectrometry is achieved by using a dual-channel microsprayer, where channels filled with different immiscible phases meet at the Taylor cone. Two types of interfacial complexation reactions have been studied: the interfacial complexation of aqueous lead ions by thioether crown molecules, and the interfacial complexation of an aqueous dipeptide by dibenzo-18-crown-6 as ionophore. The mass spectra also give valuable information on the stoichiometry of the complexation reaction.
authors.affiliation: Laboratoire d'Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne.
authors.forename: Michel
authors.initials: M
authors.lastname: Prudent
authors.forename: Manuel A
authors.initials: MA
authors.lastname: Méndez
authors.forename: Hubert H
authors.initials: HH
authors.lastname: Girault