PCB No. 50, 100µg/ml in Isooctane, 1ml

Iodoform,1000 µg/mL,MeOH,1mL,

Benzyl 4-hydroxybenzoate, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 94-18-8

n-Heptane, 5ml