Paraoxon-ethyl, 10 µg/ml, Cyclohexane, 10ml

2,3,5,6-Tetrachlorophenol, 100 µg/ml, Cyclohexane

Serotonin-13C2,15N hydrochloride (ethylamine-13C2,15N),100 µg base/mL,MeOH,1mL

O,O,O-Triethylphosphorothioate