Emejulu, M.J., Amaechi, C. F . and Obayagbona O. N 2021. Selected Trace Metal Evaluation of raw and Commercially Processed Spices Sold in Several Municipal Markets in Benin City, Southern Nigeria. NIPES - Journal of Science and Technology Research. 3, 2 (Jun. 2021). DOI:https://doi.org/10.37933/nipes/3.2.2021.22.