title: Construction and evaluation of a disposable pH sensor based on a large core plastic optical fiber.
abstract: The fabrication and characterization of a disposable optical fiber sensor for the detection of pH in the range 5-8 are described. The sensing element is a drop of sol-gel hybrid material containing phenol red and deposited onto the tip of a large core plastic optical fiber. This fiber is also exploited for the optical interrogation. This probe can be used as a disposable part of a measuring system. The dynamic range and temporal response of the sensor are here investigated.
authors.affiliation: Department of Information Engineering, University of Modena and Reggio Emilia, Modena, Italy.
authors.forename: Luigi
authors.initials: L
authors.lastname: Rovati
authors.forename: Paola
authors.initials: P
authors.lastname: Fabbri
authors.forename: Luca
authors.initials: L
authors.lastname: Ferrari
authors.forename: Francesco
authors.initials: F
authors.lastname: Pilati
mesh_terms: D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D004209:Disposable Equipment; D006863:Hydrogen-Ion Concentration; D007287:Inorganic Chemicals / Q000737:chemistry; D055100:Optical Fibers; D009930:Organic Chemicals / Q000737:chemistry; D010969:Plastics; D013997:Time Factors
chemical_list: D007287:Inorganic Chemicals; D009930:Organic Chemicals; D010969:Plastics