Ergocalciferol, 250mg

n-Butyl n-octyl phthalate, techn.,1000 µg/mL,isooctane,1mL,

Native X:3 Fluorotelomer Carbox Acid, in MeOH, 1,2ml

PCB 52-d3, 10µg/ml in Cyclohexane, 5ml