Fenthion, 10 µg/ml, Ethyl acetate, 10ml

ISO 8165-1 Internal Control Stock Solution 1 1 Internal standard, 1000µg/mL in acetone; unit: 1x5mL 2061.6 2,4-Dibromophenol [615-58-7]

Anthraquinone

Parathion-ethyl, 100 µg/ml, Cyclohexane, 1ml