EPA Method 8315 Aldehyde/Ketone-DNPH Mix Back Catalog number: 96948 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11684.12-100-IO 2,2',3,4-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request 673973 4-Nitrophenol, 10.0 µg/ml, Acetonitrile, 10ml Price on request 59504 ICP-MS Standard Price on request