Naled, 10 µg/ml, Ethyl acetate, 10ml

2,2-Bis(4-hydroxyphenyl)propane, 1.2ml x 50ug/ml, methanol

CLP Vol. GS/MS Anal., 200ug/ml in MeOH:H20, 1ml

Carbetamide, 100 µg/ml, Acetonitrile, 1ml