Herbicide Acid Standard

2,3,3',5,6-Pentachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 74472-36-9

Malathion, 100µg/ml in MeOH, 1ml

L-Ascorbic acid sodium, 100µg/ml in Acetonitrile,