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

Methamidophos, 10.0 µg/ml, Ethyl acetate, 10ml

Analytical Standard for n-Alkanes 1mL Use 100µg/mL in hexane as a working standard n-C10-C40 + Pristane

PSA-C18-Mix 12