Additional Internal Standard Solution, 1.2ml, toluene

D5-PCB 116, 10.0 µg/ml, Isooctane, 1ml

17 alpha(H),21ß(H)-(22RS)-Tetrakishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 67069-13-0

Clethodim-sulfoxide, 100 µg/ml, Acetonitrile, 1m