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Colorimetric sensor of detection of Cr (III) and Fe (II) ions in aqueous solutions using gold nanoparticles modified with methylene blue

Materials ScienceInorganic ChemistryEngineeringSensorsNanomaterialsNanotechnologyMetal NanoparticlesMethylene BlueAnalytical ChemistryColorimetric SensorChemistryNanosensorCation SensingChemical SensorGold Nanoparticles