Method 4 Standard 1

Etrimfos, 100µg/ml in Cyclohexane, 5ml

1,2,3,4-Tetrahydro-2-naphthoic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 53440-12-3

Pholcodine, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 509-67-1