WHO PCB Extraction Standard, 100pg/µl in nonane, 1,2ml

2,4,8-Trimethyldibenzothiophene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1210-52-2

Piperonyl butoxide, 1000µg/ml in MeOH, 1ml

D9-Chlormequat Chloride, 100 µg/ml , Deuterium ox