1. National Centre of Excellence in Analytical ChemistryUniversity of Sindh Jamshoro 76080- Pakistan
2. Department of ChemistryShaheed Benazir Bhutto University Shaheed Benazirabad 67450 Sindh Pakistan
3. Department of ChemistryGovernment College University Hyderabad 71500 Sindh Pakistan
4. Center for Pure and Applied GeologyUniversity of Sindh Jamshoro 76080- Pakistan