Mass-Labelled PCB Syringe Spike Solution, 1.2ml, nonane

Heptanoic acid (Enanthic), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 111-14-8

Emamectin B1a, 100 µg/ml, Acetonitrile, 1ml

Bis(2-ethylhexyl-d17) tetrabromo[13C6]phthalate, 1.2ml x 50ug/ml, toluene