2,4,5-T-methyl ester, 10 µg/ml, Acetonitrile, 10

Tri-n-hexyl phosphate,1000 µg/mL,MeOH,1mL,

MCPP methyl derivative

Mono-n-octyl phthalate-3,4,5,6-d4, 100µg/ml in MeOH, 1ml