Electrogenerated chemiluminescence of ruthenium complex immobilized in a highly cross-linked polymer and its analytical applications.
Electrogenerated chemiluminescence (ECL) of a ruthenium complex polymer modified carbon paste electrode and its analytical applications were investigated. The ruthenium complex polymer was prepared using bis(2,2-bipyridine) (4,4-dicarboxy-2,2-bipyridine) ruthenium(II). The ECL behaviours of ruthenium complex polymer modified carbon paste electrode were investigated in the absence and presence of tripropylamine (TPA). The modified carbon paste electrode exhibited long-term stability and fine reproducibility. The ECL intensity of the modified carbon paste electrode was linear with the concentration of TPA in the range 2.0 x 10(-6)-3.8 x 10(-3) mol/L, with a detection limit (S:N = 3) of 6 x 10(-7) mol/L. It was also found that raceanisodamine could enhance the ECL intensity of the modified electrode. The ECL intensity of the modified carbon paste electrode was linear with the concentration of raceanisodamine in the range 1.1 x 10(-5)-6.0 x 10(-4) mol/L, with a detection limit (S:N = 3) of 6 x 10(-6) mol/L. This work demonstrates that the entrapment of ruthenium complex in a highly cross-linked polymer is a promising approach to construct an ECL modified electrode with long-term stability and fine reproducibility. The modified electrode designed has a potential application in the ECL detector.
Shen
Lihua
L
Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an 710062, People's Republic of China.
Li
Xiaoxia
X
Qi
Honglan
H
Zhang
Chengxiao
C
D015082:2,2'-Dipyridyl / Q000031:analogs & derivatives* / Q000737:chemistry; D002244:Carbon / Q000737:chemistry; D018680:Cholinergic Antagonists / Q000032:analysis*; D003432:Cross-Linking Reagents / Q000737:chemistry*; D004563:Electrochemistry; D004566:Electrodes; D049449:Luminescence; D008163:Luminescent Measurements / Q000379:methods*; D008689:Methacrylates / Q000737:chemistry; D009942:Organometallic Compounds / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011437:Propylamines / Q000032:analysis; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012991:Solanaceous Alkaloids / Q000032:analysis
D018680:Cholinergic Antagonists; D003432:Cross-Linking Reagents; D008689:Methacrylates; D009942:Organometallic Compounds; D011108:Polymers; D011437:Propylamines; D012991:Solanaceous Alkaloids; C003922:anisodamine; C096226:tripropylamine; C008384:methacrylic acid; D015082:2,2'-Dipyridyl; C058014:ruthenium bis(bipyridine)dicarboxybipyridine; D002244:Carbon; C004919:ethylene dimethacrylate