Unsegmented continuous-flow sample processing and electrochemical detection of gaseous species. Final report, March 1, 1985--February 28, 1991

摘要

Goals were a continuous-flow, unsegmented, all-gas carrier and/or a segmented liquid/gas interface system for sample introduction and transport to detection/determination point; a regenerable electrode probe base on redox reactions of Fe(II) and Fe(III) complexes with 1, 10-phenanthroline and related ligands; and amperometric/coulometric current measurements providing analyte signals. Gases to be detected included NO(sub x) and SO(sub 2). This report is divided into 3 parts: preparation of new ligands of 1,10-phenanthroline family; glassy carbon surfaces coated with polymeric films prepared from monomeric units of tris(5-amino-1,10-phenanthroline)iron(II); and sulfite oxidase/hexacyanoferrate modified C paste electrode.