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| Voltammetric Response of Epinephrine at Carbon Nanotube Modified Glassy Carbon Electrode and Activated Glassy Carbon Electrode | |
| 引用本文： | WANG Juan~1,TANG Ping~2,ZHAO Fa-qiong~1,ZENG Bai-zhao~1 1. College of Chemistry and Molecular Sciences,Wuhan University,Wuhan 430072,Hubei,China, 2. Department of Environmental Engineer,Jianghan University,Wuhan 430000,Hubei,China. Voltammetric Response of Epinephrine at Carbon Nanotube Modified Glassy Carbon Electrode and Activated Glassy Carbon Electrode[J]. 武汉大学学报:自然科学英文版, 2005, 10(5): 913-918. DOI: 10.1007/BF02832438 |
| 作者姓名： | WANG Juan~1 TANG Ping~2 ZHAO Fa-qiong~1 ZENG Bai-zhao~1 1. College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 Hubei China 2. Department of Environmental Engineer Jianghan University Wuhan 430000 Hubei China |
| 作者单位： | WANG Juan~1，TANG Ping~2，ZHAO Fa-qiong~1，ZENG Bai-zhao~1 1. College of Chemistry and Molecular Sciences，Wuhan University，Wuhan 430072，Hubei，China; 2. Department of Environmental Engineer，Jianghan University，Wuhan 430000，Hubei，China |
| 基金项目： | Supported by the National Natural Science Foundation of China （20173040） |
| 摘 要： | 0Introduction Epinephrine(EP)isanimportantcate cholamineneurotransmitterinthemammaliancentralnervoussystem,whichissecretedbythesu prarenalglandalongwithnorepinephrine.Itisgen erallyusedtotreathypertension,bronchialasthma,organicheartdisease,andincardiacsurgeryand myocardialinfarction[1].VariousmethodshavebeendevelopedforEPstudy,suchascapillaryelectro phoresis(CE)[2],highperformanceliquidchroma tography(HPLC)andflowinjectionanalysis(FIA)[3].Numerousobservationsontheelectro chemicalbehavio… |
| 关 键 词： | 纳米碳管 玻璃碳电极 肾上腺素 电气化学 |
| 文章编号： | 1007-1202（2005）05-0913-06 |
| 收稿时间： | 2004-09-16 |
Voltammetric response of epinephrine at carbon nanotube modified glassy carbon electrode and activated glassy carbon electrode |
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| Wang Juan,Tang Ping,Zhao Fa-qiong,Zeng Bai-zhao. Voltammetric response of epinephrine at carbon nanotube modified glassy carbon electrode and activated glassy carbon electrode[J]. Wuhan University Journal of Natural Sciences, 2005, 10(5): 913-918. DOI: 10.1007/BF02832438 | |
| Authors: | Wang Juan Tang Ping Zhao Fa-qiong Zeng Bai-zhao |
| Affiliation: | (1) College of Chemistry and Molecular Sciences, Wuhan University, 430072 Wuhan, Hubei, China;(2) Department of Environmental Engineer, Jianghan University, 430000 Wuhan, Hubei, China |
| Abstract: | The electrochemical behavior of epinephrine at activated glassy carbon electrode and carbon nanotube-coated glassy carbon electrode was studied. Epinephrine could exhibit an anodic peak at about 0.2 V (vs. SCE) at bare glassy carbon electrode, but it was very small. However, when the electrode was activated at certain potential (i. e. 1.9 V) or modified with carbon nanotube, the peak became more sensitive, resulting from the increase in electrode area in addition to the electrostatic attraction. Under the selected conditions, the anodic peak current was linear to epinephrine concentration in the range of 3.3×10−7–1.1×10−5 mol/L at activated glassy carbon electrode and in the range of 1.0×10−6–5.0×10−5 mol/L at carbon nanotube-coated electrode. The correlation coefficients were 0.998 and 0.997, respectively. The determination limit was 1.0×10−7 mol/L. The two electrodes have been successfully applied for the determination of epinephrine in adrenaline hydrochloride injection with recovery of 95%–104%. Foundation item: Supported by the National Natural Science Foundation of China (20173040) Biography: Wang Juan (1979-), female, Master, research direction: electroanalytical chemistry |
| Keywords: | epinephrine carbon nanotube glassy carbon electrode modified electrode |
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