Chemiluminescent Determination of Glucose with a Modified Carbon Paste Electrode

Xu, Guobao; Zhang, Jingzhong; Dong, Shaojun

doi:10.1006/mchj.1999.1734

Cited by 12 publications

(5 citation statements)

References 19 publications

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“…(2) Optimization of ECL Detection Cell for Capillary Electrophoresis. Luminol, isoluminol, and their derivatives have been reported to be ECL active, and their ECL mechanism have also been explained. − In the present paper, luminol and isoluminol were chosen to be separated and detected by this new CE-ECL system to characterize the CE-ECL system and obtain the optimum thickness of thin-layer solution for ECL reaction.…”

Section: Resultsmentioning

confidence: 99%

Chemical Oxidation of p-Hydroxyphenylpyruvic Acid in Aqueous Solution by Capillary Electrophoresis with an Electrochemiluminescence Detection System

Chen

Chi

et al. 2003

Anal. Chem.

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A system of capillary electrophoresis with electrochemiluminescence detection (CE-ECL) together with UV spectroscopic and electrochemical methods were used to study the chemical oxidation of p-hydroxyphenylpyruvic acid (pHPP) by dissolved oxygen in aqueous solution. The pHPP was observed to be readily oxidized by dissolved oxygen in alkaline solution and yielded a compound that strongly enhanced the electrochemiluminescence of Ru(bpy)23+. This compound was separated and detected by a new CE-ECL system and revealed to be oxalate by being compared with an authentic sample of oxalate. The chemical oxidation mechanism of pHPP by dissolved oxygen was discussed in this paper.

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Section: Resultsmentioning

confidence: 99%

Chemical Oxidation of p-Hydroxyphenylpyruvic Acid in Aqueous Solution by Capillary Electrophoresis with an Electrochemiluminescence Detection System

Chen

Chi

et al. 2003

Anal. Chem.

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“…23,24 XOD can catalyze the oxidation of HX by molecular oxygen to yield uric acid, [25][26][27] so the XOD-based biosensors that measure either the consumed oxygen or the produced hydrogen peroxide and/or uric acid have been demonstrated as the satisfactory sensors for HX. [28][29][30] Because the presence of hydrogen peroxide can enhance the electrochemiluminescence of luminol, [31][32][33] an electrochemiluminescent (ECL) sensor can thus be developed to determine HX. 34 The aim of this work is to develop an ECL biosensor whose temperature can be easily controlled to get the most suitable temperature for the enzyme reaction.…”

Section: A New Electrochemiluminescent (Ecl) Biosensor Based On An El...mentioning

confidence: 99%

“…Various methods have been proposed for the determination of trace amounts of HX, such as paper chromatography, ion exchange chromatography, HPLC, and capillary electrophoresis. − However, these methods require complicated and time-consuming procedures. Polarography and stripping voltammetry have also been developed as alternative methods, which were based on the direct oxidation of HX or its complexes at the electrode surface. , XOD can catalyze the oxidation of HX by molecular oxygen to yield uric acid, − so the XOD-based biosensors that measure either the consumed oxygen or the produced hydrogen peroxide and/or uric acid have been demonstrated as the satisfactory sensors for HX. − Because the presence of hydrogen peroxide can enhance the electrochemiluminescence of luminol, − an electrochemiluminescent (ECL) sensor can thus be developed to determine HX …”

mentioning

confidence: 99%

Electrochemiluminescent Biosensor for Hypoxanthine Based on the Electrically Heated Carbon Paste Electrode Modified with Xanthine Oxidase

et al. 2008

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A new electrochemiluminescent (ECL) biosensor based on an electrically heated carbon paste electrode (HCPE) that was surface modified by xanthine oxidase (XOD) was designed and constructed in this work. It was found that the ECL intensity of luminol could be enhanced at the surface of XOD/HCPE by adding hypoxanthine (HX) to the solution, and there was a linear relationship between the ECL intensity and the concentration of HX. On the basis of this, an ECL enzyme biosensor can thus be developed to detect HX. However, because the activity of XOD is highly dependent on temperature, the biosensor is very sensitive to the temperature of the electrode. Also, because the temperature of the electrode may also affect the diffusion and convection of the luminescent compounds near the electrode surface, a suitable temperature for XOD/HCPE has to be controlled to achieve the best ECL signal. The key feature of the designed biosensor is that the temperature of the electrode is controllable so the most suitable temperature for the enzyme reaction can be obtained. The obtained results showed that the ECL enzyme biosensor exhibited the best sensitivity at an electrode temperature of 35 degrees C for the detection of HX. The detection limit was 30-fold lower than that at room temperature (25 degrees C).

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“…It can be defined concisely as chemical reactions that emit light [16]. CL has been widely used as detection method in many fields because of its many advantages: large linear response, fast light emission, high stability of reaction reagents, low consumption of expensive reagents, cheap devices, and no problems about light scattering, source instability, or high background because of no excitation light source needed [17][18][19][20][21][22][23][24][25][26][27]. However, the CL emission of molecular systems is usually weak due to low quantum efficiency.…”

Section: Introductionmentioning

confidence: 99%

Chemiluminescence and electrochemiluminescence applications of metal nanoclusters

Han

Zhang

et al. 2016

Sci. China Chem.

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Due to strong photoluminescence, extraordinary photostability, excellent biocompatibility, and good water-solubility, metal nanoclusters have attracted enormous attention since discovered. They are found to be novel fluorescence labels for biological applications and environmental monitoring. Recently the chemiluminescence (CL) or electrochemiluminescence (ECL) of metal nanoclusters has received increasing attention. This review covers recent vibrant developments in this field of the past 5 years, and highlights different functions of metal nanoclusters in various CL and ECL systems, such as luminophores, catalysts, and quenchers. Latest synthetic methods of metal nanoclusters used in CL or ECL are also summarized. Furthermore, we discuss some perspectives and critical challenges of this field in the near future. nanoclusters, chemiluminescence, electrochemiluminescence, fluorescence, sensors Citation:Han S, Zhang Z, Li S, Qi L, Xu G. Chemiluminescence and electrochemiluminescence applications of metal nanoclusters. Sci China Chem,

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Chemiluminescent Determination of Glucose with a Modified Carbon Paste Electrode

Cited by 12 publications

References 19 publications

Chemical Oxidation of p-Hydroxyphenylpyruvic Acid in Aqueous Solution by Capillary Electrophoresis with an Electrochemiluminescence Detection System

Chemical Oxidation of p-Hydroxyphenylpyruvic Acid in Aqueous Solution by Capillary Electrophoresis with an Electrochemiluminescence Detection System

Electrochemiluminescent Biosensor for Hypoxanthine Based on the Electrically Heated Carbon Paste Electrode Modified with Xanthine Oxidase

Chemiluminescence and electrochemiluminescence applications of metal nanoclusters

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