Ahmed, M. J., & Happy, T. (2022). Development of a new highly sensitive and selective spectrophotometric method for the determination of cobalt at nanotrace levels in various complex matrices using N,N’-bis(salicylidene)-ethylenediamine. European Journal of Chemistry, 13(1), 20–32. https://doi.org/10.5155/eurjchem.13.1.20-32.2139