1-(4-Chlorophenyl)urea, 100 µg/ml, Acetonitrile,

Caffeine,100 µg/mL,MeOH,1mL,

ICP-AES ICV Water/ Soil Matrix, in 5% HNO3, 100ml

Benzo[k]fluoranthene-d12, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 93952-01-3