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The synthesis, properties and applications of a water‐soluble boronate‐functioned hemicyanine–naphthol hybrid as a novel ratiometric fluorescent sensor for hydrogen peroxide are presented. The dye displayed remarkable a colour change from pale orange (λem = 590 nm) to pink (λem = 690 nm) in the presence of H2O2, which could be rationalized by the chemoselective H2O2‐mediated transformation of arylboronate...
The weak chemiluminescence (CL) from the reaction of hemoglobin (Hb) with hydrogen peroxide in an aqueous carbonate solution was significantly enhanced in the presence of β-cyclodextrin (β-CD). The mechanism was discussed by examining CL emission spectrum and the effect of various free radical scavengers on CL emission intensity. The β-CD could form encapsulation complex with heme, which was dissociated...
A novel chemiluminescence (CL) system, cobalt(II)-hydrogen peroxide-hydrogencarbonate without luminescent reagents, was described. When cobalt(II) was injected into mixed solution of 0.4 mol l -1 hydrogencarbonate and 0.01 mol l -1 hydrogen peroxide in a flow injection system, CL occurred, which was significantly enhanced when rhodamine B coexisted. The CL emission intensity...
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