Tris(2,2'-bipyridyl)ruthenium(II) electrochemiluminescent determination of ethyl formate

Tadesse Haile Fereja; Shimeles Addisu Kitte; Dmytro Snizhko; Liming Qi; Anaclet Nsabimana; Zhongyuan Liu; Guobao Xu

doi:10.1007/s00216-018-1275-4

Tris(2,2'-bipyridyl)ruthenium(II) electrochemiluminescent determination of ethyl formate

Anal Bioanal Chem. 2018 Oct;410(26):6779-6785. doi: 10.1007/s00216-018-1275-4. Epub 2018 Aug 7.

Authors

Tadesse Haile Fereja^{1

2

3}, Shimeles Addisu Kitte^{1

2}, Dmytro Snizhko^{1

4}, Liming Qi^{1

2}, Anaclet Nsabimana^{1

2}, Zhongyuan Liu^{5

6}, Guobao Xu^{7

8

9}

Affiliations

¹ State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, Jilin, China.
² University of Chinese Academy of Sciences, Beijing, 100049, China.
³ College of Medicine and Health Sciences, Department of Pharmacy, Ambo University, P.O. Box 19, Ambo, Ethiopia.
⁴ Laboratory of Analytical Optochemotronics, Kharkiv National University of Radio Electronics, 14 Nauki Ave, Kharkiv, 61166, Ukraine.
⁵ State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, Jilin, China. zhongyuanliu@ciac.ac.cn.
⁶ University of Chinese Academy of Sciences, Beijing, 100049, China. zhongyuanliu@ciac.ac.cn.
⁷ State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, Jilin, China. guobaoxu@ciac.ac.cn.
⁸ University of Chinese Academy of Sciences, Beijing, 100049, China. guobaoxu@ciac.ac.cn.
⁹ University of Science and Technology of China, No.96, JinZhai Road Baohe District, Hefei, 230026, Anhui, China. guobaoxu@ciac.ac.cn.

PMID: 30088032
DOI: 10.1007/s00216-018-1275-4

Abstract

Ethyl formate is extensively used as food flavor, fungicide, and larvicide. It naturally exists in coffee, fruits, honey, brandy, and rum as well as dust clouds in an interstellar space of the Milky Way galaxy. Herein, its electrochemiluminescence (ECL) property has been firstly investigated. It shows intense ECL in reaction with Ru(bpy)₃²⁺ as luminophore, and thus a rapid and sensitive detection method for ethyl formate is proposed. Effects of pH, working potential, scan rate, and concentration of Ru(bpy)₃²⁺ were studied. ECL spectrum analysis was used to reveal the reaction mechanism. At the optimized experimental conditions, a linear relationship between ECL intensities and concentrations of ethyl formate is observed from 3.0 μM to 1.0 mM (R² = 0.997). The limit of detection for ethyl formate is 0.7 μM (S/N = 3). The relative standard deviation with 1.0 mM concentration of ethyl formate for nine analyses is 2.7%. A 101.20-102.10% recovery was obtained in a real samples analysis. Graphical Abstract ᅟ.

Keywords: Coreactant; Electrogenerated chemiluminescence; Ethyl formate; Tris(2,2′-bipyridyl)ruthenium(II).

MeSH terms

Electrochemical Techniques / methods*
Formic Acid Esters / analysis*
Hydrogen-Ion Concentration
Limit of Detection
Luminescent Measurements
Organometallic Compounds / chemistry*

Substances

Formic Acid Esters
Organometallic Compounds
tris(2,2'-bipyridyl)ruthenium(II)
ethyl formate

Abstract

MeSH terms

Substances

Grants and funding