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

Pesticide-Mix 134, 10.0 µg/ml, Acetonitrile, 10m

Warfarin-d5 (phenyl-d5), 100µg/ml in MeOH, 1ml

Perfluoro([5-methoxy-1,3-dioxolan-4-yl]oxy)acetic acid (C6O4), 1.2ml x 50ug/ml, methanol