WP Amp 1 Trace Elements - Cal Check

Esfenvalerate, 10.0 µg/ml, Ethyl acetate, 10ml

Bromoethane, 20mg/ml in MeOH, 1ml

2,2',3,3',4',5,5'-Heptachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene