Alachlor, 100 µg/ml, Methanol, 5ml

Di-n-octyltin dichloride, 100mg

1,2,3,4,6,7,9-Heptachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

d2 C29 alpha alpha alpha (20R)-Ethylcholestane, 100µg/mL in Isooctane, 10 x 1ml