ICP-MS Mix Back Catalog number: 59548 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EPA-8290HRCC1,2,4 Individual Calibration Solutions , 500ul, nonane Price on request 676691 Heptachlor, 100 µg/ml, Ethyl acetate, 1ml Price on request 673532 2,4'-DDE, 100 µg/ml, Ethyl acetate, 5ml Price on request