Ethoprophos, 100µg/mL in Cyclohexane, 1ml

2,2',4,5-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,

1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin

Custom Mix of Deuterated Phthalates and PAHs 2000µg/mL each in dichloromethane, 10x1ml in Certan 0978.10 naphthalene-d8 9966.6 ortho-bromoaniline 0329.16 pyrene-d10 2478.10 Dimethyl-phthalate-3,4,5,6-d4 2892