Trifluoro(13C2)acetic acid, 50µg/ml in MeOH, 1,2ml

3,3',4,4'-Tetrabromodiphenyl ether, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 93703-48-1

Benzyldimethylhexadecylammonium chloride, 100 µg/m

Custom mix of C13-C17 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 0,20mg/mL. This product has been diluted gravime