Perdeuterated Internal Standard - PAH-Mixture 3 9 Analyte, each 1000 µg/mL in cyclohexane; units: 1x1mL, 1x5mL 0978.10 Naphthalene-d8 [1146-65-2] 1336.12 Acenaphthylene-d8 [93951-97-4] 0383.12 Dibenzothiophene-d8