Chemical Stability of the Fertilizer Chelates Fe-EDDHA and Fe-EDDHSA over Time
Ewelina Klem-Marciniak, M. Huculak-Mączka, Kinga Marecka, Krystyna Hoffmann, J. Hoffmann
Abstract
In application conditions, the influence of environmental parameters on used fertilizer chelates and their distribution over time is important. For this purpose, the changes in the content of micronutrient ions and Fe-EDDHA and Fe-EDDHSA chelates in an aqueous medium at different pH values were studied. In the assumed time, changes in the ions content were analyzed using the voltammetry method at pH 3, 5 and 7. The content of isomers and chelate forms was analyzed by ion pair chromatography at pH 3, 5 and 7. These studies allowed us to determine the effect of pH on the stability of iron chelates over time.
Topics & Concepts
ChelationChemistryFertilizerAqueous solutionIonInorganic chemistryMicronutrientCyclic voltammetryElectrochemistryOrganic chemistryElectrodePhysical chemistryPlant Micronutrient Interactions and EffectsPolymer-Based Agricultural EnhancementsWater Quality Monitoring and Analysis