Ruthenium bipyridine complexes as electrochemiluminescent transducers for ionophore-based ion-selective detection

Tang, Yinghong1; Zhai, Jingying2; Chen, Qinghan2; Xie, Xiaojiang1

2021-09-01

10.1039/d1an01355f

ANALYST   影响因子和分区

0003-2654

1364-5528

We report here a method to determine target ion concentrations (with Na+ as a model) based on ionophores and electrochemiluminescence (ECL). Ruthenium bipyridine complexes were released from thin polymeric films (plasticized poly(vinyl chloride) also containing a sodium ionophore) into the sample solution following an explicit ion-exchange process (between Na+ and the ruthenium complex). Two signal transducers, tris(2,2 '-(pCF(3))bipyridine)ruthenium(ii) (Ru(p-CF3-bpy)(3)(2+)) and tris(2,2 '-bipyridyl)dichlororuthenium(ii) (Ru(bpy)(3)(2+)), were examined using the sensing film, with the latter providing a more sensitive detection range (ca. 1 to 100 mu M) than that of the more hydrophobic one (0.01 to 1 mM). While the ionophore (Na+ ionophore X) offered excellent selectivity to the method, the ruthenium complexes made the measurements independent of the sample pH. Furthermore for complex biological samples such as blood serum, an indirect approach of measuring the ECL of the remaining ruthenium complexes helps avoid background matrix interference to the ECL production at the working electrode, making the ECL method more attractive for real complex samples.

SCI ; EI

英语

第一 ; 通讯

Special Funds for the Cultivation of Guangdong College Students' Scientific and Technological Innovation "Climbing Program" Special Funds[pdjh2020c0033]

Chemistry

Chemistry, Analytical

WOS:000707405200001

ROYAL SOC CHEMISTRY

20214611162715

Ion exchange ; Ionophores ; Ions ; Polyvinyl chlorides ; Ruthenium compounds ; Sodium compounds ; Transducers

Chemical Reactions:802.2 ; Chemical Products Generally:804 ; Organic Polymers:815.1.1

CHEMISTRY

Web of Science

1.Southern Univ Sci & Technol, Dept Chem, 1088 Xili Xueyuan Blvd, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, SUSTech Acad Adv Interdisciplinary Studies, 1088 Xili Xueyuan Blvd, Shenzhen 518055, Peoples R China

Tang, Yinghong,Zhai, Jingying,Chen, Qinghan,et al. Ruthenium bipyridine complexes as electrochemiluminescent transducers for ionophore-based ion-selective detection[J]. ANALYST,2021,146:6955-6959.

Tang, Yinghong,Zhai, Jingying,Chen, Qinghan,&Xie, Xiaojiang.(2021).Ruthenium bipyridine complexes as electrochemiluminescent transducers for ionophore-based ion-selective detection.ANALYST,146,6955-6959.

Tang, Yinghong,et al."Ruthenium bipyridine complexes as electrochemiluminescent transducers for ionophore-based ion-selective detection".ANALYST 146(2021):6955-6959.