Internal Standard Spiking Solution, 1.2ml, nonane Back Catalog number: EPA-513ISS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 673657 Pendimethalin, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 677908 Fenpiclonil, 100 µg/ml, Acetonitrile, 1ml Price on request 59429 Sulfate (SO42-) Price on request