Atrazine-d5 (ethyl-d5),100 µg/mL,acetonitrile,1mL,

Cimetidine hydrochloride, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 70059-30-2

4-Hydroxyisophthalic acid (4-Hydroxybenzene-1,3-dicarboxylic acid), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 636-46-4

1H,1H,2H,2H-Perfluoro-n-octyl methacrylate,50 µg/mL,MeOH,1mL,