Calibration Standard Mix 4

6-Nitrobenzo[a]pyrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 63041-90-7

ζ-1,2,5,6,9,10-Hexabromocyclododecane, 1.2ml x 50ug/ml, toluene

13C6-Rafoxanide, 10mg