Benzoisothiazol-3-one-13C6, 0,5mg

Mono-n-butyl phthalate (ring-1,2-13C2, dicarboxyl-13C2, 99%) 100 µg/mL in MTBE, 1,2ml

3-Chloro-1,2-propanediol-d5, 100µg/ml in MeOH, 5ml

ICP Mix #2