Ethanol, 2000µg/ml in Water, 1ml

13C4-Fipronil, 100 µg/ml, Acetonitrile, 1ml

4-n-Nonylphenol (ring13C6) (same as S-4376-1-5AC), 1µg/ml, Solvent-Acetone, Unit 4.5ml, # of units-1, Cas.no.

Sodium bis-[2-(N-ethylperfluorooctane-1-sulfonamido)ethyl] phosphate, 1.2ml x 50ug/ml, methanol