PCB No. 31, certified, 25mg

Methyl 13-cis,16-cis-docosadienoate , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 61012-47-3

GFAA Calibration

Sodium perfluoro-1-[1,2,3,4-13C4]octanesulfonate, 1.2ml x 50ug/ml, methanol