Simultaneous Detection of Ammonium and Nitrate in Environmental Samples Using on Ion-Selective Electrode and Comparison with Portable Colorimetric Assays. - Jittima Choosang; Apon Numnuam; Panote Thavarungkul; Proespichaya Kanatharana; Tanja Radu; Sami Ullah; Aleksandar Radu (Sensors, 2018)