1. Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pa-shan, Pune 411008, India
2. National Institute of Technology Calicut, NIT Campus P.O., Kozhikode 673601, Kerala, India
3. Analytical and Environmental Sciences Division and Centralized, Instrumentation Facility, CSIR-Central Salt and Marine Chemicals Research, Institute, Gijubhai Badheka Marg, Bhavnagar 364002, India