Electrochemical Polymerization of Ruthenium(II) Complex and Application to Acetaminophen Analysis
作者:Sethuraman Kannan、Jung-Ik Son、Jee-Eun Yang、Yoon-Bo Shim
DOI:10.5012/bkcs.2011.32.4.1341
日期:2011.4.20
A novel ruthenium(II) complex, [$RuCl_2(DMSO)_2$(PhenTPy)] has been synthesized by the condensation of $RuCl_2(DMSO)_4$ with (1-(1,10-phenanthrolinyl)-2,5-di(2-thienyl)-1H-pyrrole)[PhenTPy] in $CHCl_3$ solution. The [$RuCl_2(DMSO)_2$(PhenTPy)] complex modified electrode was fabricated through the electropolymerization of the monomer in a 0.1 M tetrabutylammonium perchlorate (TBAP)/$CH_2Cl_2$ solution, to take advantage of the electronic communication between metal ion center by the conjugated backbone. The UV-visible spectroscopy (UV), mass spectrometry (MS), and cyclic voltammetry (CV) were employed to characterize the [$RuCl_2(DMSO)_2$(PhenTPy)] complex and its polymer (poly-Ru(II)Phen complex). The poly-Ru(II)Phen complex modified electrode exhibited an electrocatalytic activity to the oxidation of acetaminophen and the catalytic property was used for the analysis of acetaminophen at the concentration range between 0.09 and 0.01 mM in a phosphate buffer solution (pH 7.0).
一种新型钌(II)络合物[$RuCl_2(DMSO)_2$(PhenTPy)]是通过在$CHCl_3$溶液中,将$RuCl_2(DMSO)_4$与(1-(1,10-菲咯啉基)-2,5-二(2-噻吩基)-1H-吡咯)[PhenTPy]缩合而合成的。[$RuCl_2(DMSO)_2$(PhenTPy)]络合物修饰电极是通过在0.1 M四丁基高氯酸铵(TBAP)/$CH_2Cl_2$溶液中,对单体进行电聚合法而制成的,以利用金属离子中心之间的电子通信。紫外-可见光谱(UV)、质谱(MS)和循环伏安法(CV)被用于表征[$RuCl_2(DMSO)_2$(PhenTPy)]络合物及其聚合物(聚-Ru(II)苯络合物)。聚-Ru(II)苯络合物修饰电极对对乙酰氨基酚的氧化表现出电催化活性,该催化性能可用于在磷酸盐缓冲溶液(pH