1. Faculty of General Education, Hanoi University of Mining and Geology, Hanoi, Vietnam
2. Institute for Theoretical and Applied Research, Duy Tan University, Hanoi, Vietnam
3. Faculty of Nature Science, Duy Tan University, Da Nang, Vietnam
4. Faculty of Natural Sciences, Hong Duc University, Thanh Hoa, Vietnam
5. Branch of National Institute of Occupational Safety and Health & Environmental Protection in Central of Vietnam, Hai Chau, Da Nang, Vietnam
6. Faculty of Basic Sciences, University of Transport and Communications, Hanoi, Vietnam
7. Faculty of Chemistry, Hanoi National University of Education, Hanoi, Vietnam
8. Institute for Tropical Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
9. Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi, Vietnam