期刊
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
卷 408, 期 25, 页码 7173-7180出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-016-9746-y
关键词
Electrochemiluminescence; Sensors; Bisphenol A; Peroxydisulfate
资金
- National Natural Science Foundation of China [21373138, 81472001, 31400851]
- Shanghai Education Committee [15ZZ070]
- International Joint Laboratory on Resource Chemistry (IJLRC)
An electrochemiluminescence (ECL) sensor for bisphenol A was proposed by using l-cysteine-functionalized multiwalled carbon nanotubes/gold nanocomposites-modified glassy carbon electrode (MWCNTs-Au/GCE) based on ECL of peroxydisulfate solution. The ECL behaviors of peroxydisulfate solution had been investigated at the chitosan/MWCNTs-Au/GCE, and bisphenol A was found to have quenching effects on the ECL of peroxydisulfate solution. Both Au nanoparticles (AuNPs) and multiwalled CNTs could promote the electron transfer and synergetically amplify the ECL signal of peroxydisulfate solution. Under the optimized conditions, the ECL signal intensity was linear with the concentration of bisphenol A in the concentration range between 0.25 and 100 mu M (R = 0.9931) with a detection limit (S/N = 3) of 0.083 mu M. The constructed ECL sensor has the advantages of simplicity, sensitivity, good selectivity, and reproducibility, exhibiting a great potential application in the determination of bisphenol A.
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