Matrix Spiking Solution, 1.2ml, nonane Back Catalog number: EPA-8290MSS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 675768 Isocarbophos, 100 µg/ml, Ethyl acetate, 5ml Price on request 32351 Dichloromethane, 20mg/mL in MeOH, 1ml Price on request 675248 Proquinazid, 100 µg/ml, Acetonitrile, 5ml Price on request