3-Chlorothiophene in isooctane, Blank Units: 5x1mL ampoules

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

Clarithromycin, certified, 0.1g

Ethanol standard in water,0.5g/L,water, 3mL