Dipentyl phthalate, 250mg

1,2,4,6,7,9-Hexachloro(13C12)dibenzo-p-dioxin, 1.2mL x 50ug/mL, toluene

N-methylperfluoro-1-octansulfonamide, 50µg/ml in MeOH, 1,2ml

Ethyl vanillin