Roles of CdS were investigated in 1,1'-oxalyldiimidazole chemiluminescence (ODI CL) reaction. CdS acted as an enhancer in aqueous ODI CL reaction using a fluorescent dye capable of emitting bright CL emission, whereas it acted as a quencher in non-aqueous ODI CL reaction using a fluorescent dye. Trace levels of glucose in human serum were quantified using the advantages of aqueous ODI CL reaction in the presence of CdS. ODI CL reaction in the presence of 2.75 �M CdS was four times more sensitive than that in the absence of CdS. Based on the recovery tests of ODI CL reaction with CdS, we also confirmed that the new analytical method can be applied as an accurate and precise biosensor. In conclusion, we expect that advanced ODI CL reaction in the presence of CdS will be used in various research fields such as clinical chemistry, environmental engineering, homeland security, and toxicology.

Roles of quantum dots in 1,1'-oxalyldiimidazole chemiluminescence reaction

244th National Meeting (2012)

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