1. Chemistry
Department, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
2. University
of Malaya Center for Ionic Liquid, Chemistry Department, Faculty of Science University of Malaya, 50603 Kuala Lumpur, Malaysia
3. Chemical
Engineering Department, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
4. Centre
for Separation Science and Technology, Department of Chemical Engineering,
Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia