Mass-Labelled PCB Extraction Standards, 1.2ml, nonane

POE (7-8) tert-Octylphenol, reduced,neat,neat,100mg,

Terbufos-d10 (O,O-diethyl-d10),100 µg/mL,acetonitrile,1mL,

Pentachloro(13C6)benzene, 1.2mL x 100ug/mL, nonane