| heavy metal (lead, cadmium) and antibiotic (tetracycline and chloramphenicol) residues in fresh and frozen fish types (clarias gariepinus, oreochromis niloticus) in ibadan, oyo state, nigeria. | this study was carried out to assess the level of heavy metals (lead (pb) and cadmium (cd)) and antibiotics (tetracycline and chloramphenicol) residues in frozen and fresh fish types obtained from eleyele river, officer's mess, alfa farm and a major frozen meat outlet in ibadan, oyo state nigeria. the atomic absorption spectrophotometer (aas) and high performance liquid chromatography (hplc) were used to analyze the heavy metals and antibiotics residue levels in fresh and frozen fish, respective ... | 2012 | 24205760 |