Internal Standard Solution, 1.2ml, nonane Back Catalog number: NK-IS-J4 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 673642 Monocrotophos, 100 µg/ml, Ethyl acetate, 5ml Price on request 679155 2-NP-AOZ, 10mg Price on request PFOS-001S Perfluorooctane sulfonic acid, 100µg/ml in MeOH, 1ml Price on request