Internal Standard

2,2,4,4,5,5,7,7-Octamethyloctane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5171-85-7

p-Xylene-d10, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 41051-88-1

1,4,5-Trichloro(13C10)naphthalene, 1.2mL x 50ug/mL, nonane