Simazine (ring-13C3), 100ug/ml in MeOH, 1,2ml

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

GABA

6-Methylchrysene, 10.0 µg/ml, Acetonitrile, 10ml