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Citation: YAN Gui-Hong, XING Da, TAN Shi-Ci. Effects of Perforated Platinum Electrode on the Electrochemiluminescence Intensity[J]. Chinese Journal of Applied Chemistry, ;2003, 20(5): 493-495. shu

Effects of Perforated Platinum Electrode on the Electrochemiluminescence Intensity

1.
Institute of Laser Life Science, South China Normal University, Guangzhou 510631

Corresponding author: XING Da,
Received Date: 9 August 2002
Available Online: 25 December 2002
Fund Project: 广东省自然科学基金团队项目(015012) (015012)广东省环保局科技攻关资助项目([2000]138) ([2000]138)

The relation of the electrochemiluminescence (ECL) intensity with the shape of perforated and imperforated platinum electrodes has been investigated.ICCD (Intensified charge-coupled device) was used to get the images of ECL of Ru(bpy)₃Cl₂·6H₂O and tripropylamine (TPA) on the electrodes.The results showed that the ECL was concentrated on the edge of the electrode.For the perforated platinum electrode,the ECL intensity was found to be dependent both on the electrode edge and the edge of the holes on the disk electrode.The ECL intensity of Ru(bpy)₃Cl₂·6H₂O measured on the four-hole disk electrode was double higher than that measured on the simple disk electrode and the detection limit was increased approximately by three orders of magnitude from 1 fmol/L to 1 amol/L.
- electrochemiluminescence,
- electrode,
- Ru(bpy)₃²⁺
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