Dimethoate, 100 µg/ml, Ethyl acetate, 5ml

2-Methyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 20928-02-3

Ritalinic acid (threo), neat, Solvent-neat, Unit 200mg, # of units-1, Cas.no. 54631-24-2

Triphenyl phosphate, 1.2ml x 50ug/ml, toluene