EPA Method 8260B - Purgeable Internal Std

O-Desmethyl tramadol-d6 (racemic) , 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-5, Cas.no. 16412-54-7

Total Organic Carbon (C)

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