Solid Surface Enhancement Effects on Chemiluminescence. III. Diaryloxalate as Chemiluminescence Reagent and Inorganic Materials as Media Solids

Abstract

Abstract Solid surface enhancement effects on chemiluminescence were studied using many inorganic materials as solid media. The results has been classified as follows: the first group (G-1) which has higher initial intensities and shorter lifetimes compared with the reference chemiluminescence (blank CL; medium solid used is a slide glass)—Al2O3 series including hydroxides and glass fiber filter fall under this group (G-1); the second group (G-2) which has lower initial intensities and longer lifetimes compared with the blank CL—high purity CaCO3 fall under this group (G-2); the third group (G-3) which has higher initial intensities and longer lifetimes compared with the blank CL—SiO2 powder and a silica fiber filter fall under this group (G-3); and the fourth group (G-4) which has lower initial intensities and shorter lifetimes compared with the blank CL—all remaining solid media other than group (G-1)–(G-3) fall under this group (G-4). Furthermore, from a chemiluminescent energy point of view, there exists another group (G-5) which has higher relative luminescent energies or relative quantum yields than the blank one–all the compounds that belong to the group (G-3) and others in group (G-1) and group (G-2), i.e., silica powder (SW-CO type), silica fiber filter (QR-100 type), and high purity calcium carbonate (3N-D type) are members of this group (G-5). Effects of surface condition and particle size on chemiluminescence were also examined.