EPA Method 502/524 Fortification Solution

Di-n-octadecyldisulfide, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2500-88-1

Levoglucosan, 1000µg/mL, Solvent-Tetrahydrofuran, Unit 1mL, # of units-5, Cas.no. 498-07-7

2,4-Dichlorophenylacetic acid