Measurement and characterization of singlet oxygen production in copper ion-catalyzed aerobic oxidation of ascorbic acid
文献类型：期刊论文
| 作者 | Song, Bo; Wang, Guilan; Yuan, Jingli |
| 刊名 | talanta
 |
| 出版日期 | 2007-04-15 |
| 卷号 | 72期号:1页码:231-236 |
| 关键词 | ascorbic acid aerobic oxidation europium singlet oxygen production time-resolved luminescence |
| 英文摘要 | production of singlet molecular oxygen (o-1(2)) in the aerobic oxidation of ascorbic acid catalyzed by copper ion was measured and characterized using [4'-(9-anthryl)-2,2':6',2"-terpyridine-6,6"-diyl]bis(methylenenitrilo)tetrakis(acetate)-eu3+ (atta-eu3+) as a highly sensitive and selective time-resolved luminescence probe for o-1(2). the o-1(2) produced in the reaction was further characterized and confirmed by (i) chemical trapping of o-1(2) with 9,10-diphenylanthracene (dpa), the corresponding endoperoxide was detected by hplc and (ii) spin trapping of o-1(2) with 2,2,6,6-tetramethyl-4-piperidinol (tmp-oh), the corresponding free radical of tmp-oh oxide (tmpo center dot) was detected by electron spin resonance (esr) spectroscopy. the effects of deuterium oxide, sodium azide and histidine on the o-1(2) signal were investigated. the mechanism investigation of 102 production implied that the ascorbic acid-cu(i) complex formed in the reaction could be an important intermediate for the o-1(2) production. the reaction of ascorbic acid with copper ion monitored by h-1 nmr and absorption spectroscopy demonstrated the formation of a copper ion-ascorbic acid complex. except for cu2+ and cu+-ascorbic acid systems, no detectable 102 was produced in other transition metal cation-ascorbic acid systems in the studied range. (c) 2006 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, analytical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | time-resolved fluoroimmunoassay ; human-blood-plasma ; molecular-oxygen ; vitamin-c ; gene-expression ; dna ; photoactivation ; antioxidant ; superoxide ; activation |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000246225900032 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140696]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dept Analyt Chem, Dalian 116023, Liaoning Prov, Peoples R China 2.Dalian Univ Technol, Dept Chem, State Key Lab Fine Chem, Dalian 116012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Bo,Wang, Guilan,Yuan, Jingli. Measurement and characterization of singlet oxygen production in copper ion-catalyzed aerobic oxidation of ascorbic acid[J]. talanta,2007,72(1):231-236. |
| APA | Song, Bo,Wang, Guilan,&Yuan, Jingli.(2007).Measurement and characterization of singlet oxygen production in copper ion-catalyzed aerobic oxidation of ascorbic acid.talanta,72(1),231-236. |
| MLA | Song, Bo,et al."Measurement and characterization of singlet oxygen production in copper ion-catalyzed aerobic oxidation of ascorbic acid".talanta 72.1(2007):231-236. |
入库方式： OAI收割
来源：大连化学物理研究所
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