Atrazine-d5 (ethyl-d5),100 µg/mL,acetonitrile,1mL,

cis-1,2,trans-1,4-1,2,4-Trimethylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 7667-58-5

gamma-HCH, 100 µg/ml, Ethyl acetate, 5ml

2-n-Propyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 147792-30-1