Matrix Spiking Solution, 1.2ml, nonane Back Catalog number: EPA-8290MSS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 66167 PCB No. 167, 100µg/ml in Isooctane, 1ml Price on request 673793 Dioxathion, 100 µg/ml, Ethyl acetate, 5ml Price on request 675105 Sodium p-n-undecylbenzenesulfonate, 10.0 µg/ml, M Price on request