应用化学 ›› 1992, Vol. 0 ›› Issue (6): 67-70.

• 研究简报 • 上一篇    下一篇

稀土氧化谷胱甘肽配合物的XPS研究

张树功, 牛春吉, 倪嘉缵   

  1. 中国科学院长春应用化学研究所, 长春 130022
  • 收稿日期:1991-03-26 修回日期:1992-01-25 出版日期:1992-12-10 发布日期:1992-12-10
  • 基金资助:
    国家自然科学基金;稀土化学与物理开放实验室基金

XPS STUDIES ON RARE EARTH CHLORIDE COMPLEXES WITH OXIDIZED GLUTATHIONE

Zhang Shugong, Niu Chunji, Ni Jiazuan   

  1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022
  • Received:1991-03-26 Revised:1992-01-25 Published:1992-12-10 Online:1992-12-10

摘要: 谷胱甘肽是人体内重要低肽,具有许多生物功能。正常状态下,体内主要以还原型(GSH,-O2CCH(NH3+)CH2CH2C:ONHCH(CH2SH)C:ONHCH2CO2H)存在,氧化型(GSSG、(-O2CCH(NH3+)CH2CH2C:ONHCH(CH2S-)C:ONHCH2CO2H)2)只占还原型浓度的~1%,并由谷胱甘肽氧化还原酶维持二者的平衡。化GSH为GSSG[1],而Cu2+与GSSG的配合物则诱导GSSG水解为GSH[2]。可见金属离子会影响二者在体内的正常平衡。

关键词: 稀土, 配合物, 氧化谷胱甘肽, XPS

Abstract: The preparation and XPS characters of rare earth chloride complexes with oxidized glutathione(GSSG) have been studied.The results indicate that all the oxygen atoms in GSSG are coordinated and the conformation change of the ligand is very little in the complexes. The BE peaks of 3d5/2 and 3d3/2 of lanthanide ions in the complexes show the satellite peaks.The mechanism,intensity and shift of the satellite peaks are discussed.

Key words: rare earth, complex, GSSG, XPS