8260 Surrogates / Internals Standard Back Catalog number: 91515 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675779 Phoxim, 100 µg/ml, Ethyl acetate, 5ml Price on request 678626 Vamidothion-sulfoxide, 100 µg/ml, Acetonitrile, Price on request 79300 Heptachlor Price on request