Tri-n-propyl phosphate, 1.2ml x 50ug/ml, toluene

Paraxanthine, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 611-59-6

2-Ethyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 8916-98-8

PCB 180, 10.0 µg/ml, Isooctane, 10ml