鲁米诺/氨基磺酸电化学发光及其多巴胺检测应用

doi:10.13208/j.electrochem.201247

电化学（中英文） ›› 2021, Vol. 27 ›› Issue (2): 168-176. doi: 10.13208/j.electrochem.201247

鲁米诺/氨基磺酸电化学发光及其多巴胺检测应用

Tesfaye Hailemariam Barkae¹^,²^,³, Mohamed Ibrahim Halawa¹^,⁴^,⁵, Tadesse Haile Fereja¹^,⁶, Shimeles Addisu Kitte¹^,⁷, 马显贵¹^,², 陈业权¹, 徐国宝¹^,^*()

1.中国科学院长春应用化学研究所电分析化学国家重点实验室,吉林长春 130022
2.中国科学技术大学应用化学与工程学院,安徽合肥 230026
3.Wolkite university, College of natural & computational science, Department of chemistry,P.O Box 07, Wolkite, Ethiopia
4.Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, 35516, Mansoura, Egypt
5.深圳大学化学与环境工程学院及物理与光电工程学院,深圳广东 518000
6.Ambo University, College of Medicine and Health Sciences, Department of Pharmacy, P. O. Box 19, Ambo, Ethiopia
7.Jimma University, College of Natural Sciences, Department of Chemistry, P. O. Box 378, Jimma, Ethiopia

收稿日期:2021-02-02 修回日期:2021-03-08 发布日期:2021-03-15 出版日期:2021-04-28
通讯作者: 徐国宝 E-mail:guobaoxu@ciac.ac.cn

Luminol/Sulfamic Acid Electrochemiluminescence and Its Application for Dopamine Detection

Tesfaye Hailemariam Barkae¹^,²^,³, Mohamed Ibrahim Halawa¹^,⁴^,⁵, Tadesse Haile Fereja¹^,⁶, Shimeles Addisu Kitte¹^,⁷, Xian-Gui Ma¹^,², Ye-Quan Chen¹, Guo-Bao Xu¹^,^*()

1. State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, Jilin,China
2. School of Applied chemistry and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, China
3. Wolkite university, College of Natural & Computational Science, Department of Chemistry, P.O Box 07, Wolkite, Ethiopia
4. Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, 35516, Mansoura, Egypt
5. College of Chemistry and Environmental Engineering and College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, Guangdong, China
6. Ambo University, College of Medicine and Health Sciences, Department of Pharmacy, P. O. Box 19, Ambo, Ethiopia
7. Jimma University, College of Natural Sciences, Department of Chemistry, P. O. Box 378, Jimma, Ethiopia

Received:2021-02-02 Revised:2021-03-08 Online:2021-03-15 Published:2021-04-28
Contact: Guo-Bao Xu E-mail:guobaoxu@ciac.ac.cn

1. 徐宝国支持信息.pdf(349KB)

摘要/Abstract

摘要：

在本文中,我们首次观察到氨基磺酸可以显著增强鲁米诺电化学发光,而且鲁米诺电化学发光的强度随着氨基磺酸浓度在0.1 μmol·L^-1至500 μmol·L^-1范围增加而线性增加。同时,我们观察到多巴胺可以显著猝灭鲁米诺-氨基磺酸电化学发光。基于该猝灭现象,我们建立了多巴胺的电化学发光分析方法,该方法的线性范围为0.5至20 μmol·L^-1,检出限为30 nmol·L^-1。该方法具有较好的选择性,尿酸、抗坏血酸、糖和一些氨基酸对电化学发光影响较小。采用标准加入法,成功地将鲁米诺-氨基磺酸体系用于尿液中多巴胺的电化学发光测定,回收率为103% ~ 105%。另外,我们还考察了多巴胺的猝灭机理,并用Stern-Volmer方程计算了的动态猝灭常数。

关键词: 电化学发光, 氨基磺酸, 鲁米诺, 多巴胺

Abstract:

Herein, sulfamic acid (SA) was utilized, for the first time, to enhance significantly the luminol electrochemiluminescence (ECL). With the SA concentration increased from 0.1 μmol·L^-1 to 500 μmol·L^-1 the ECL intensity increased proportionally. The developed luminol/SA ECL system was employed to detect dopamine (DA) based on its prominent quenching effect. The Stern-Volmer equation of I_o/I= 1+K_sv[DA] could be applied to express well the quenching mechanism of DA in the luminol/SA ECL system. The calibration plot showed that the increase in the DA concentration from 0.5 to 20 μmol·L^-1 decreased linearly the ECL intensity with a detection limit of 30 nmol·L^-1. The luminol/SA ECL system was successfully carried out for DA detection in urine real sample by employing the standard addition method with the excellent recoveries of 103% ~ 105%. Selectivity of the as-developed ECL system was also investigated by using uric acid, ascorbic acid, sugars and amino acids. The results indicated that the ECL intensities changed negligibly in the presence of other substances.

Key words: electrochemiluminescence, sulfamic acid, luminol, dopamine

Tesfaye Hailemariam Barkae, Mohamed Ibrahim Halawa, Tadesse Haile Fereja, Shimeles Addisu Kitte, 马显贵, 陈业权, 徐国宝. 鲁米诺/氨基磺酸电化学发光及其多巴胺检测应用[J]. 电化学（中英文）, 2021, 27(2): 168-176.

Tesfaye Hailemariam Barkae, Mohamed Ibrahim Halawa, Tadesse Haile Fereja, Shimeles Addisu Kitte, Xian-Gui Ma, Ye-Quan Chen, Guo-Bao Xu. Luminol/Sulfamic Acid Electrochemiluminescence and Its Application for Dopamine Detection[J]. Journal of Electrochemistry, 2021, 27(2): 168-176.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.13208/j.electrochem.201247

https://electrochem.xmu.edu.cn/CN/Y2021/V27/I2/168

图/表 9

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Table 1

Sample	DA added/(μmol·L^-1)	DA obtanied/(μmol·L^-1)	Recovery/%	R.S.D./%
Urine 1	0.6	0.63	105	3.4
Urine 2	0.9	0.93	103	2.9
Urine 3	1.2	1.25	104	3.7

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鲁米诺/氨基磺酸电化学发光及其多巴胺检测应用

Luminol/Sulfamic Acid Electrochemiluminescence and Its Application for Dopamine Detection

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