Terbuthylazine

d4 C27 alpha alpha alpha (20R)-Cholestane, 100µg/mL in Isooctane, 1ml

2,2',3,3',4,5,6'-Heptachlorobiphenyl

Perfluoro-4,5-dimethylhexane sulfonate, 200ul x 1.00ug/ml, methanol