Sensitized chemiluminescence of Tween 20 on CdTe/H(2)O(2) and its analytical applications for determination of phenolic compounds.
In this paper, we proposed a simple and sensitive assay of phenolic compounds (PCs) using 3-mercaptocarboxylic acid (MPA) modified CdTe nanocrystals (CdTe NCs), which contain abundant carboxylic groups (-COOH) and are water-soluble, stable and biocompatible. The effects of surfactants on the CdTe/H(2)O(2) chemiluminescence (CL) system were investigated. It is found that the addition of Tween 20 into the system could induce a significant enhancement on CL intensity. PCs were observed to inhibit the CL signal of the CdTe/H(2)O(2)/Tween 20 system and determined by the proposed method. The CL mechanism was also discussed briefly based on the photoluminescence (PL) and CL spectra.
Kang
Jing
J
Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, PR China.
Li
Juan
J
Tang
Jieli
J
Li
Minjie
M
Li
Xiaozhou
X
Zhang
Yihua
Y
D002104:Cadmium / Q000737:chemistry*; D002396:Catechols / Q000032:analysis / Q000737:chemistry; D006861:Hydrogen Peroxide / Q000737:chemistry*; D006873:Hydroquinones / Q000032:analysis / Q000737:chemistry; D049449:Luminescence; D053768:Metal Nanoparticles / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D015394:Molecular Structure; D010636:Phenols / Q000032:analysis / Q000737:chemistry*; D011136:Polysorbates / Q000737:chemistry*; D013499:Surface Properties; D013501:Surface-Active Agents / Q000737:chemistry; D013691:Tellurium / Q000737:chemistry*; D014881:Water Supply / Q000032:analysis
D002396:Catechols; D006873:Hydroquinones; D010636:Phenols; D011136:Polysorbates; D013501:Surface-Active Agents; D002104:Cadmium; D006861:Hydrogen Peroxide; D013691:Tellurium