2-Ethyltoluene, 200 µg/ml, Methanol, 1ml

Chloridazon, 100µg/mL in Acetonitrile, 1ml

n-Eicosane-d42, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 62369-67-9

Citric acid [0.3% wt]