1. Department of Chemistry, Faculty of Science and Technology, Thammasat University, Paholyothin Road, Khlong Luang, Pathumthani 12120, Thailand
2. Center of Scientific Equipment for Advanced Research, Office of Advanced Science and Technology, Thammasat University, Paholyothin Road, Khlong Luang, Pathumthani 12120, Thailand
3. Analytical Sciences and National Doping Test Institute, Mahidol University, Rama 6, Road, Bangkok 10400, Thailand