Internal standard

N-Nitrosodiisobutylamine, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 997-95-5

Tetraoctylammonium bromide, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 14866-33-2

4-Methylnonane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 17301-94-9