Hossain, M., Khan, M., Prattaya, R., Yasmin, M. and Khatun, M. 2021. Spectrophotometric determination of trace amount of iron in water, food, and pharmaceutical samples. Bangladesh Journal of Scientific and Industrial Research. 56, 4 (Dec. 2021), 299–306. DOI:https://doi.org/10.3329/bjsir.v56i4.57194.