PCB No. 31, certified, 25mg

N-Methyl(nitrosoamino)-ethanol,1000 µg/mL,acetonitrile,1mL,

525 Internal Standard

Custom mix of C10-C16 alkyl PAHs, 25 components each 2µg/mL in Toluene (Sigma quality 155004, ACS Spectrophotometric grade): Prepared gravimetrically by weighing components and solvent to a calculated 0,2mg/mL. This product has been diluted gravimet