钒（IV）阳离子与植酸的相互作用。

The interaction of the vanadyl(IV) cation with phytic acid.

作者信息

Williams P A, Baran E J

机构信息

Química Inorgánica (QUINOR), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Argentina.

出版信息

Biol Trace Elem Res. 1993 Feb;36(2):143-50. doi: 10.1007/BF02783173.

DOI:10.1007/BF02783173

PMID:7681306

Abstract

The interactions of VO2+ with phytate to form both soluble and insoluble complexes, have been studied by electronic absorption spectroscopy. A soluble 1:1 VO2+:phytate complex is formed at pH < 1. At higher pH-values insoluble complexes are produced. Two different solid complexes, obtained respectively at pH = 2 and 4, were isolated and characterized. The maximal bonding ratio of VO2+:phytate was found to be 4, on the basis of a pH binding profile.

摘要

通过电子吸收光谱法研究了VO₂⁺与植酸形成可溶性和不溶性络合物的相互作用。在pH < 1时形成可溶性1:1的VO₂⁺:植酸络合物。在较高pH值下会产生不溶性络合物。分离并表征了分别在pH = 2和4时获得的两种不同的固体络合物。根据pH结合曲线，发现VO₂⁺:植酸的最大结合比为4。