PTIO (=2-苯基-4,4,5,5-四甲基咪唑啉-3-氧代-1-氧) [大气中NO和NO2同时测定用稳定自由基试剂]，98.0%(T)

PTIO (=2-Phenyl-4,4,5,5-tetramethylimidazoline-3-oxide-1-oxyl) [Stable free radical reagent for the simultaneous determination of NO and NO2 in the atmosphere]

仅供研发或工业应用，不可直接用于食品、药品、临床诊断或治疗。