感光科学与光化学2001，Vol.19Issue(1)：19-28,10.
蛋氨酸与化学增感剂的相互作用机理
THE INTERACTION MECHANISM OF METHIONINE AND CHEMICAL SENSITIZERS
张宜恒 1冯少红 1闫天堂 1宫竹芳 2俞书勤 3庄思永 4彭必先5
作者信息
- 1. 中国科学技术大学应用化学系
- 2. 中国科学技术大学近代物理系
- 3. 中国科学技术大学化学物理系,
- 4. 华东理工大学精细化学品研究所,
- 5. 中国科学院理化技术研究所,
- 折叠
摘要
Abstract
The changes of the chemical states and the relative contents of sulfur,gold,carbon and oxygen after methionine reacted with different chemical sensitizers are studied by ESCA scanning technique of X-ray Photoelectron Spectroscopy(CPS).The results indicated that the interaction mechanism of methionine reacted with different chemical sensitizers is not identical.Any oxidation-reduction reaction did not occurred between methionine and sulfur sensitizer,they could coexist steadily in the same system.The methionine was oxidized to methionine sulfoxide,in the same time reducing Au3＋ to gold atom.The hydroxy of methionine could coordinate Au,forming Au-O-C coordinate metal complex.After S+Au sensitizers had been immersed into methionine system,oxidation-reduction reaction occurred between added thiosulfate and Au3＋,methionine could coordinate Au which was reduced by sulfur sensitizer,also forming Au-O-C coordinate metal complex.关键词
蛋氨酸/化学增感剂/X射线光电子能谱分类
化学化工引用本文复制引用
张宜恒,冯少红,闫天堂,宫竹芳,俞书勤,庄思永,彭必先..蛋氨酸与化学增感剂的相互作用机理[J].感光科学与光化学,2001,19(1):19-28,10.
