EPA Method 8260B Mix #4

2-n-Butyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 147792-31-2

17 alpha(H),21ß(H)-25-Norhopane, 1µg

24-Ethyl-5 alpha(H)-cholestan-3ß-ol (ß-Sitostanol), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 83-45-4