title: Fluorescent microsphere fiber optic microsensor array for direct iodide detection at low picomolar concentrations.
abstract: Fluorescent optode microspheres doped with the halide-selective receptor [9]mercuracarborand-3 and a lipophilic pH fluoroionophore were found to exhibit picomolar limits of detection to iodide at pH 3.5, and were used to monitor the precipitation of iodide by silver ions at subnanomolar concentrations, just above their calculated solubility.
authors.affiliation: Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN 47907, USA.
authors.forename: Katarzyna
authors.initials: K
authors.lastname: Wygladacz
authors.forename: Eric
authors.initials: E
authors.lastname: Bakker
mesh_terms: D011232:Chemical Precipitation; D005336:Fiber Optic Technology; D005453:Fluorescence; D006863:Hydrogen-Ion Concentration; D007454:Iodides / Q000032:analysis*; D007476:Ionophores / Q000737:chemistry; D046228:Microarray Analysis / Q000379:methods; D008863:Microspheres; D055100:Optical Fibers; D009941:Organomercury Compounds / Q000737:chemistry
chemical_list: D007454:Iodides; D007476:Ionophores; D009941:Organomercury Compounds; C119005:mercuracarborand-3