title: Direct Detection of Aqueous CO2by Infrared Waveguide Spectroscopy with an Amorphous Fluoropolymer Coating Rod.
abstract: Infrared waveguide spectroscopy using a sapphire rod coated with an amorphous fluoropolymer (Cytop, Asahi Glass Co., ltd, Japan) has been developed in order to directly observe CO2in aqueous solutions. Since the amorphous fluoropolymer has a relatively high gas-permeability and hydrophobic feature, the aqueous CO2transmits into the amorphous fluoropolymer coating film, but water cannot penetrate into the film. Good linearity of calibration curves for CO2in the gas and the aqueous solution were obtained.
authors.affiliation: Department of Chemistry, Nara University of Education.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Hotta
authors.forename: Yuko
authors.initials: Y
authors.lastname: Miki
authors.forename: Yukiko
authors.initials: Y
authors.lastname: Kawaguchi
authors.forename: Kin-Ichi
authors.initials: KI
authors.lastname: Tsunoda
authors.forename: Atsuko
authors.initials: A
authors.lastname: Nakaoka
authors.forename: Sho
authors.initials: S
authors.lastname: Ko
authors.forename: Takashi
authors.initials: T
authors.lastname: Kimoto