Pentachlorobenzene, 100 µg/ml, Acetonitrile, 1ml

2,4,4',5-Tetrachlorodiphenyl ether, 1.2ml x 50ug/ml, nonane

Hexadecamethylcyclooctasiloxan, 100µg/ml in Acetone, 5ml

d2 C29 alpha alpha alpha (20R)-Ethylcholestane, 10µg/mL in Osooctane, 1ml