Organo-modified layered double hydroxide-catalyzed Fenton-like ultra-weak chemiluminescence for specific sensing of vitamin B-12 in egg yolks
文献类型：期刊论文
| 作者 | Zhang, Lijuan ; Rong, Wanqi ; Lu, Chao ; Zhao, Lixia |
| 刊名 | TALANTA
 |
| 出版日期 | 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 |
| 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. |
入库方式： OAI收割
来源：生态环境研究中心
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