Benzene/n-Hexane Control Standard Benzene/n-Hexane = 1:2 (Neat 1mL)

3,4,5-Trimethylphenol, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 527-54-8

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

Heptachlor epoxide