We used cold atmospheric pressure plasma jet to examine in detail 1O2 generation water. ESR with 2,2,5,5-tetramethyl-3-pyrroline-3-carboxamide, a secondary amine probe, was for the detection of 1O2. Nitroxide radical formation detected after irradiation 2,2,5,5-tetramethyl-3-pyrroline-3-carboxamide solution. An scavenger/quencher inhibited signal intensity induced by irradiation, but this inhib...