Dimethoate, 100 µg/ml, Toluene, 1ml

2,3',4,4',5,5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

524.3 UCMR3 Standard

12-Methylbenz[a]anthracene,200 µg/mL,toluene,1mL,