EPA Method 8260 Internal Standard - Revised

Naphthalene-d8, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 1146-65-2

2,3,5,6-Tetrachlorobiphenyl (BZ-65)

Ciprofloxacin HCl monohydrate, 100μg/ml in MeOH, 1ml