Aldehyde/Ketone - DNPH Standard Back Catalog number: 98683 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PFNA Perfluoro-n-nonanoic acid, 1.2ml x 50ug/ml, methanol Price on request 675841 4,4'-DDE, 100 µg/ml, Toluene, 5ml Price on request 677856 Flupyradifurone, 100 µg/ml, Acetonitrile, 1ml Price on request