(±)-Vanillomandelic acid-d3,100 µg/mL,MeOH,1mL,

Prednisone,neat,neat,10mg,

ISO 15753 Alternatively: Standard solution of 16 EPA-PAHs may be used, but this mixture also contain acenaphtylene S-4470-100-T EPA (=S-4063-100-T) 100µg each/mL in toluene; unit: 1x1mL

Ergosterol, >95%, 5g