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Abstract:
A room temperature ionic liquid (IL), 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6) was used as a binder to prepare the electrically heated ionic liquid/carbon paste electrode (IL-HCPE). It has been found that N6-isopentenyl-adenine (2-ip) can enhance the electrochemiluminescent (ECL) intensity of Ru (bpy)32 +. The electrode surface temperature (Te) has great effect on the ECL intensity of Ru (bpy)32 +/2-ip system. The ECL intensities has a linear relationship with the concentration of 2-ip in the range of 1.0 × 10-7-1.2 × 10-6 mol/L with a detection limit of 3.6 × 10-8 mol/L (S/N = 3) when Te was 58 °C, while the linear range was of 5.0 × 10-7-1.0 × 10-6 mol/L with a detection limit of 1.8 × 10-7 mol/L under 27 °C. It was also found that the reproducibility of this ECL system would be better at elevating temperature, the RSD were 7.2% and 1.5% for 8.0 × 10-7 mol/L of 2-ip at 27 and 58 °C, respectively. The possible mechanism of the Ru (bpy)32 +/2-ip ECL system has been proposed also. © 2009 Elsevier B.V. All rights reserved.
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Electrochemistry Communications
ISSN: 1388-2481
Year: 2009
Issue: 10
Volume: 11
Page: 2056-2059
4 . 2 4 3
JCR@2009
4 . 7 0 0
JCR@2023
JCR Journal Grade:1
CAS Journal Grade:1
Cited Count:
SCOPUS Cited Count: 15
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
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30 Days PV: 0
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