Assessment of Heavy Metals in Edible Clays Sold in Onitsha .
Mar 25, 2014 . Sold in Onitsha Metropolis of Anambra State,. Nigeria . 1Chemistry Unit, National Open University of Nigeria, Lagos, Nigeria. 2Department of Chemistry ... while Okpoko had the highest mean concentration of 7.172 ppm. One way . Bentonite clays are good at adsorbing heavy metals and other positively.Live Chat