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腐植酸(包括黑腐酸HA和黄腐酸FA)广泛存在于自然界.各种不同来源的腐植酸在结构上基本相似,反映在它们的物化性质与生物活性方面也大致相同.一般认为这种结构尚不太清楚的大分子有机化合物往往同各种金属离子结合起螯合剂的功效.对金属在环境中的积聚、迁移和固定起着十分重要的作用.近年来利用各种现代的方法与仪器来研究腐植酸与金属离子的作用机理及其反应物结构的报道很多,但研究结果很不一致,结论也不统一. 近年发展起来的X射线光电子能谱(XPS)技术在研究电荷转移配合物方面已显示出它的特殊功能.为此,我们对一种已经做过结构表征的FA(吐鲁番风化煤FA)及两种标准物,水杨酸(1)和邻苯二甲酸(2)与Zn(II),Hg(II),Cu(II),Ag(II),
Humic acid (including humic acid HA and fulvic acid FA) is widely found in nature, and humic acids of various origins are structurally similar and are generally reflected in their physico-chemical properties and biological activity. Macromolecular organic compounds, which are not yet clearly understood, often combine with various metal ions to act as chelating agents and play an important role in the accumulation, migration and fixation of metals in the environment. In recent years, various modern methods and Instruments to study the mechanism of humic acid and metal ions and the structure of reactants reported, but the results are very inconsistent, the conclusion is not uniform .In recent years, the development of X-ray photoelectron spectroscopy (XPS) technology in the study of charge transfer complexes Has shown its special function.Therefore, we have done a structural characterization FA (Turfan Fossil FA) and two standards, salicylic acid (1) and phthalic acid (2) and Zn (II), Hg (II), Cu (II), Ag (II),