title: Correlation between the charge of polymer particles in solution and in the gas phase investigated by zeta-potential measurements and electrospray ionization mass spectrometry.
abstract: The relationship between the effective charge of polymer nanoparticles (PNP) in solution and the charge states of ionized particles produced in the gas phase by electrospray ionization was investigated. Charge detection mass spectrometry was used to measure both the mass and charge of individual electrosprayed ions. The effective charges extracted from the measured zeta-potential of PNPs in solution are partially correlated with the average values of charge of PNPs in the gas phase. The correlation between the magnitude of charging of PNPs ions produced in the gas phase with the PNPs surface charge in solution demonstrates that the mass spectrometry-based analysis described in this work is an alternative and promising way for a fast and systematic characterization of charges on colloidal particles.
authors.affiliation: Université Lyon 1-CNRS, Université de Lyon , 69622 Villeurbanne cedex, France.
authors.forename: Nesrine
authors.initials: N
authors.lastname: Ouadah
authors.forename: Tristan
authors.initials: T
authors.lastname: Doussineau
authors.forename: Thomas
authors.initials: T
authors.lastname: Hamada
authors.forename: Philippe
authors.initials: P
authors.lastname: Dugourd
authors.forename: Claire
authors.initials: C
authors.lastname: Bordes
authors.forename: Rodolphe
authors.initials: R
authors.lastname: Antoine
mesh_terms: D005740:Gases / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D019904:Polymethyl Methacrylate / Q000737:chemistry*; D012996:Solutions; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D005740:Gases; D012996:Solutions; D019904:Polymethyl Methacrylate