Fenitrothion D6 (O,O-dimethyl D6), 100µg/ml in Cyclohexane, 1ml

Perfluoro-n-[1,2,3,4,5-13C5]nonanoic acid, 50µg/ml in MeOH, 1,2ml

2-Nitrophenol, 100 µg/ml, Methanol, 1ml

4-n-Octylphenol, 1000µg/mL in MeOH, 1ml