title: Photodynamic optical sensor for buffer capacity and pH based on hydrogel-incorporated spiropyran.
abstract: We introduce here a dynamic optode for buffer capacity sensing based on photochromic spiropyran (Sp). It represents the first reversible optical sensor for buffer capacity. Sensing was possible using a non-equilibrium readout mode, a novelty for photoswitchable optical ion sensors. In addition to the buffer capacity, the final point of each measurement sequence provides the pH of the solution.
authors.affiliation: Graz University of Technology, Institue of Analytical Chemistry and Food Chemistry, 8010 Graz, Austria. g.mistlberger@gmail.com.
authors.forename: G
authors.initials: G
authors.lastname: Mistlberger
authors.forename: M
authors.initials: M
authors.lastname: Pawlak
authors.forename: E
authors.initials: E
authors.lastname: Bakker
authors.forename: I
authors.initials: I
authors.lastname: Klimant