Abstract:

In this paper, the significance of chelating rate in organic trace element complexes has been demonstrated from three points such as balancing product quality, modulating process conditions and exploring product mechanisms. Determination methods for chelating rate were reviewed here. Based on comparison, organic solvent extraction method exhibited more applicable than gel filtration chromatography.

Key words: organic trace element, chelating rate, chelating rate determination, gel filtration chromatography method, organic solvent extraction method