Organo-modified layered double hydroxide-catalyzed Fenton-like ultra-weak chemiluminescence for specific sensing of vitamin B-12 in egg yolks

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

	Organo-modified layered double hydroxide-catalyzed Fenton-like ultra-weak chemiluminescence for specific sensing of vitamin B-12 in egg yolks
	Zhang, Lijuan ; Rong, Wanqi ; Lu, Chao ; Zhao, Lixia
刊名	TALANTA
	2014
卷号	129 期号:1 页码:126-131
关键词	Organo-modified layered double hydroxides Fenton-like reaction Chemiluminescence Vitamin B-12
ISSN号	0039-9140
中文摘要	In general, the chemiluminescence (CL) sensing of vitamin B-12 is achieved by determining Co(II) liberated from acidified vitamin B-12 by a luminol system. However, the luminol system for sensing vitamin B-12 has poor selectivity due to serious interference from other metal ions. In this study, as a novel CL amplifier of the Co(II)+H2O2+OH- ultra-weak CL reaction (Fenton-like system), dodecylbenzene sulfonate (DBS)-layered double hydroxides (LDHs) have been applied to the specific determination of vitamin B-12 by liberating Co(II). The CL intensity increased with increasing the concentration of vitamin B-12 in a wide range from 1.0 ng mL(-1) to 5 mu g mL(-1) with a detection limit of 0.57 ng mL(-1) (S/N=3). The proposed method has been successfully applied to determine vitamin B-12 in egg yolk with simple procedures, shorter time and higher selectivity. Recoveries from spiked real samples were 96-103%. The results of the proposed method for sensing vitamin B12 in real samples were agreed with those obtained by the standard inductively coupled plasma mass spectrometry (ICP-MS) method. To the best of our knowledge, this is the first report on the CL sensing of vitamin B-12 with high selectivity in the absence of luminol. (C) 2014 Elsevier B.V. All rights reserved.
WOS记录号	WOS:000341463400018
公开日期	2015-03-24
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/9415]
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	Zhang, Lijuan,Rong, Wanqi,Lu, Chao,et al. Organo-modified layered double hydroxide-catalyzed Fenton-like ultra-weak chemiluminescence for specific sensing of vitamin B-12 in egg yolks[J]. TALANTA,2014,129(1):126-131.
APA	Zhang, Lijuan,Rong, Wanqi,Lu, Chao,&Zhao, Lixia.(2014).Organo-modified layered double hydroxide-catalyzed Fenton-like ultra-weak chemiluminescence for specific sensing of vitamin B-12 in egg yolks.TALANTA,129(1),126-131.
MLA	Zhang, Lijuan,et al."Organo-modified layered double hydroxide-catalyzed Fenton-like ultra-weak chemiluminescence for specific sensing of vitamin B-12 in egg yolks".TALANTA 129.1(2014):126-131.