Internal standard

Ethanol standard in water,2.0g/L,water, 1.5mL

1,5-Bis-(1-methylethyl)-biguanide HCl, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 45095-69-0

Mevinphos, 10.0 µg/ml, Ethyl acetate, 10ml