1. National Centre of Excellence in Analytical Chemistry, University of Sindh, 76080 Jamshoro, Pakistan
2. M.A. Kazi Institute of Chemistry, University of Sindh, 76080 Jamshoro, Pakistan
3. Department of Chemistry, Government College University, 71000 Hyderabad, Pakistan
4. Department of Chemistry, Shaheed Benazir Bhutto University, Shaheed Benazirabad, 67450 Nawabshah, Sindh, Pakistan