Multi-Element Internal Standard Back Catalog number: 50160 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3776.7-K-IO 2-Ethyl-3-methoxypyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 25680-58-4 Price on request 676613 Metolachlor OA, 100 µg/ml, Acetonitrile, 1ml Price on request 673536 2,4'-DDT, 100 µg/ml, Ethyl acetate, 5ml Price on request