Mohamed Abou-El Wafa Abdallah

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The distribution of heavy metals in El-Mex Bay located in Northern Egypt was studied. Eight metals (Cd, Cr, Co, Cu, Zn, Pb, Mn and Fe) were determined in water, Suspended Particulate Matter (SPM) and sediments. The Bay presents higher metal concentrations in aqueous Cd, Co and Pb are above the chronic freshwater quality criteria for aquatic life. Most of(More)
The spatial distribution of 50 ornamental fish species from shallow water habitats on coral reefs were investigated using visual census techniques, between latitudes 11-29°N in the Red Sea, in Jordan, Egypt, Saudi Arabia, and Yemen, and in the adjacent Gulf of Aden in Djibouti. One hundred eighteen transects (each 100×5 m) were examined in 29 sites (3-8(More)
A selective, accurate, precise, and highly sensitive HPTLC assay with reflectance/fluorescence densitometry was developed to separate and quantify some angiotensin II receptor blockers (ARBs), namely, losartan potassium, irbesartan, valsartan, and olmesartan medoxomil, in tablets and plasma. Separation of the target ARBs was performed on precoated silica(More)
Growing populations and increasing industry and agriculture activates have increased the existence of chemicals in the aquatic environment. The variety of anthropogenic chemicals that have been identified as potential endocrine disruptors (EDCs) in the environment and the problems arising from their use as human and livestock pharmaceuticals are discussed.(More)
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