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3723426 
Journal Article 
Chemiluminescence of Colloidal MnO2 with Luminol and Determination of Polyhydroxyl Compounds 
Li, Y; Yang, Yun 
2013 
Yes 
Journal of the Chinese Chemical Society
ISSN: 0009-4536 
60 
10 
1241-1245 
WOS:000328132000008 
The reaction between luminol and colloidal MnO2 (prepared by chemical reduction of KMnO4 with Na2S2O3 under neutral aqueous condition) produced an intense chemiluminescence (CL) emission in alkaline medium. The CL reaction conditions were carefully optimized and the CL reaction mechanism was thoroughly discussed. Manganese(III) was suggested to be involved in the reaction and 3-aminophthalate anion was the luminophor. Moreover, the effects of 23 compounds on the colloidal MnO2-luminol CL system were investigated to explore its possible analytical applications. Polyhydroxyl compounds were observed to inhibit the signal significantly, whereas sulfhydryl compounds enhance it slightly. The analytical figures for five polyhydroxyl compounds, namely ascorbic acid, rutin, pyrogallol, quercetin, and L-adrenaline, were presented. As a preliminary application, the method was applied to the determination of rutin in pharmaceutical formulations. 
Chemiluminescence; Colloidal manganese dioxide; Luminol; Polyhydroxyl compounds