Comparison of SpectropHotometric and Volumetric Methods for the Determination of Manganese Oxide Content inPhosphate Ores
Spectrophotometric and volumetric methods have advantages and disadvantages in the determination of manganese oxide in phosphate rock.Spectrophotometric method determines the concentration based on the absorption spectrum characteristics,with high accuracy and good reproducibility,but the operation is more complicated,with high requirements on instruments and technology;it is suitable for low concentration of manganese samples,but it needs to solve the interference of other substances.The volumetric method determines the concentration by titration,which is easy to operate and suitable for laboratory conditions.Especially,the iodometric method has high accuracy under control,has a wide range of application,and can effectively exclude some interferences such as trivalent iron ions.Its reproducibility depends on the titration accuracy.Therefore,sample characteristics,accuracy requirements and ease of operation should be considered when selecting a method,and method validation and optimization should be carried out for specific cases to ensure the reliability of the results.
phosphoritemanganese oxide contentspectrophotometric methodvolumetric methoddeterminationadvantages and disadvantagescomparisonmethod selection
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