QC Standard 5

Caffeine, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 58-08-2

Sulfosulfuron

Dibenzo[a,k]fluoranthene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 84030-79-5