1,3-Dinitropyrene, 100µg/mL in Toluene, 1ml

Mono-(6-Hydroxy-2-propylheptyl)phthalate-13C2, 1,2

2H-Perfluoro-[1,2-13C2]-2-dodecenoic acid (10:2), 50µg/ml in Isopropanol, 1,2ml

2,3,7,8-Tetrachlorodibenzo-p-dioxin ,50 µg/mL,n-nonane,1mL,