The determinations of rate constant ,activation energy and equilibrium constant of complexation reaction between CuTBP,CoTBP and imidazole ,pyridine ,2-methyprdine and 2,4-dimethypridine with spectrophotography were studied in this paper.The influences of basicity of ligand and space sterically hindered on the complexation reaction were discussed and the changes of ultraviolet-visible spectra of complexation reaction were given.
竹叶提取物(Extract of bamboo leaves,Ebl)是我国新开发的一种植物类黄酮制剂,具有优良的抗自由基、抗氧化、抗衰老、抗菌、抗病毒及保护心脑血管,防治老年退行性疾病等生物学功效.就竹叶黄酮的提取、分离纯化及抗氧化活性的测定方法等方面做了详细的阐述,同时结合在实验过程中的一些经验,提出了一些看法.
Tetrabenzoporphyrine (H 2TBP) of plane structure and its Co 2+ ,Ni 2+ ,Zn 2+ complexes have been synthesized.The strueture of these complexes were studies by visible spectrum.IR and elemental analysis.
With the inductance couple plasma spectrum (ICPS),the adsorption of Cu 2+ ?Zn 2+ ?Cd 2+ ?Cr 3+ on cholesterol were examined by setting various concentration,acidity,time,and temperature.In aqueous solution,the adsorption relation curve of similar one mtal ion was obtained.The interaction,as compared to the report of medical research,provides a good explanation for the interrelation of trace element with atherosc lerosis.
