Precision and Recovery Stock Solution, 1.2ml, nonane

2,2',3,4,4',5',6-Heptachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 52663-69-1

Benzene, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 71-43-2

Rifampicin, 100mg