Electrochemiluminescence of luminol on Ti/TiO2 NT electrode and its application for pentachlorophenol detection.
This work demonstrates for the first time the electrochemiluminescence (ECL) of luminol on a Ti/TiO(2) NT electrode and its analytical application for the detection of pentachlorophenol (PCP). Luminol emits stable and intensive light on the Ti/TiO(2) NT electrode at -0.6 V, and PCP is found to be able to inhibit the ECL intensity. PCP is detected based on the inhibition of ECL intensity. The proposed method exhibits good reproducibility, wide-range linearity (0.3 pM to 3 μM), and high sensitivity with a limit of detection (LOD) of 0.1 pM (S/N = 3). The possible inhibition mechanism has also been discussed.
Li
Chengcheng
C
State Key Lab of Chemo/Biosensing & Chemometrics, College of Chemistry & Chemical Engineering, Hunan University, Changsha, 410082, China.
Kang
Qing
Q
Chen
Yufang
Y
Li
Juanxiu
J
Cai
Qingyun
Q
Yao
Shouzhuo
S
D004563:Electrochemistry; D004566:Electrodes; D049449:Luminescence; D008165:Luminol / Q000737:chemistry*; D010416:Pentachlorophenol / Q000032:analysis*; D014025:Titanium / Q000737:chemistry*
C009495:titanium dioxide; D008165:Luminol; D014025:Titanium; D010416:Pentachlorophenol