Anion Standard - Nitrite, 10µg/ml in Water, 100ml

epsilon-HCH, 10µg/ml in Cyclohexane, 1ml

Perfluoro-3,7-dimethyloctanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 172155-07-6

(-)-(S)-Levetiracetam,1000 µg/mL,MeOH,1mL