Diuron, 100µg/mL in Acetonitrile, 1ml

2,2',3,4',5,5'-Hexachloro-4-methoxybiphenyl, 1.2ml x 50ug/ml, nonane

[13C12]Diphenyl ether, 1.2ml x 50ug/ml, nonane

N,N-Diethylethanolamine