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† Program of Science Education, Faculty of Science, Ubon Ratchathani University, Warin Chamrap, Ubon Ratchathani 34190, Thailand ‡ Department of Chemistry and Center of Excellence for Innovation in ...
EDTA, EGTA and citric acid can chelate a number of metallic ions such as magnesium, manganese, iron, copper, zinc, calcium, and other divalent cations, which are considered co-factors to several ...