Conductance @ 20°C [50,000 µmho/cm]

Cefazolin, 2,5g

Acetone, 1000µg/ml in MeOH:Water (9:1), 1ml

2,2',3,3',4,5,6'-Heptachlorobiphenyl,100 µg/mL,isooctane,1mL,