1. Trace Analysis and Biosensor Research Center, Prince of Songkla University, Hat Yai, Songkhla, Thailand
2. Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
3. Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
4. Department of Physics, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand