17 alpha(H),21 alpha(H)-Hopane, 50µg/mL in Isooctane, 1ml

Phthalic acid, bis-2-ethylhexyl ester D4, 100µg/mL in Cyclohexane, 1ml

Diuron

TFNA, 100 µg/ml, Acetonitrile, 1ml