Internal Standard Stock Solution, 1.2ml, nonane

Cyclohexanecarboxylic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 98-89-5

ζ-1,2,5,6,9,10-Hexabromocyclododecane, 1.2ml x 50ug/ml, toluene

Naphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 91-20-3