Luminol chemiluminescence in unbuffered solutions with a cobalt(II)-ethanolamine complex immobilized on resin as catalyst and its application to analysis

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Luminol chemiluminescence in unbuffered solutions with a cobalt(II)-ethanolamine complex immobilized on resin as catalyst and its application to analysis
	Lin, JM; Shan, XQ; Hanaoka, S; Yamada, M
刊名	ANALYTICAL CHEMISTRY
	2001
卷号	73 期号:21 页码:5043-5051
英文摘要	Using a heterogeneous catalyst, Co(II)-ethanolamine complex sorbed on Dowex-50W resin, the chemiluminescence (CL) of luminol in unbuffered or weakly acidic solution was studied in the presence of H2O2, The maximum luminol CL wavelength at pH 5.7 was 448 run, 23 mn longer than that in a basic solution (pH 10.5). Three different ligands, mono-, di-, and triethanolamine, and six transition metal ions, Co(II), Cu(II), Ni(II), Mn(II), Fe(II), and Fe(III) were compared by CL measurements. The CL intensity decreased in the order mono- > di- > triethanolamine and Co(II) > Cu(II) > Ni(II) > Fe(III) > Mn(II) > Fe(II). This heterogeneous CL system was developed as H2O2 and glucose flow-through sensors. Detection limits (S/N = 3) Of H2O2 and glucose using Dowex-50W-X4-Co(II)-monoethanolamine as catalyst are 1 X 10(-7) M and 1 x 10(-6) M, respectively. On the basis of the studies of the CL, fluorescence, UV-vis and ESCA spectra and the effect of dissolved oxygen in luminol solution, a mechanism for CL emission in unbuffered solution was considered as the formation of a superoxide radical ion during the decomposition of H2O2 catalyzed by the Co(II)-ethanolamine immobilized resin. Then the superoxide radical ion acted on luminol and the CL was emitted. The applications of the proposed method to determine H2O2 in rainwater without any special pretreatment and glucose in human urine and orange juice samples give satisfactory results.
WOS记录号	WOS:000171992500017
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/24021]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Lin, JM,Shan, XQ,Hanaoka, S,et al. Luminol chemiluminescence in unbuffered solutions with a cobalt(II)-ethanolamine complex immobilized on resin as catalyst and its application to analysis[J]. ANALYTICAL CHEMISTRY,2001,73(21):5043-5051.
APA	Lin, JM,Shan, XQ,Hanaoka, S,&Yamada, M.(2001).Luminol chemiluminescence in unbuffered solutions with a cobalt(II)-ethanolamine complex immobilized on resin as catalyst and its application to analysis.ANALYTICAL CHEMISTRY,73(21),5043-5051.
MLA	Lin, JM,et al."Luminol chemiluminescence in unbuffered solutions with a cobalt(II)-ethanolamine complex immobilized on resin as catalyst and its application to analysis".ANALYTICAL CHEMISTRY 73.21(2001):5043-5051.