Chlorfenvinphos, 100µg/mL in Acetonitrile, 1ml

2,3,3',5'-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,

n-Butyl 4-hydroxybenzoate-2,3,5,6-d4, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1219798-67-0

Perfluoro-1-butanesulfonamide , 1.2ml x 50ug/ml, isopropanol