1. Water Pollution Research Dept., National Research Center, Dokki 12311, Cairo, Egypt.
2. Food Toxicology & Contaminants Dept., National Research Center, Dokki 12311, Cairo, Egypt.
3. Chemistry Dept., Faculty of Science, Kasetsart Univ., Bangkok 10903, Thailand.
4. Earth Science Dept., Faculty of Science, Kasetsart Univ., Bangkok 10903, Thailand.
5. Food Toxicology & Contaminants Dept., National Research Center, Dokki 12311, Cairo, Egypt (corresponding author).