WS Low Level Perchlorate

1,2,4-Trichlorobenzene, 1000µg/ml in MeOH, 1ml

2,2',3,3',4,6-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL,

Diclofenac-d4 (phenyl-d4), 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 153466-65-0