BTEX Mix Back Catalog number: 20001AR Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PFBA Perfluoro-n-butanoic acid, 50µg/ml in MeOH, 1,2ml Price on request 8923.16-100MG Perfluorokerosene (bp. 70-200) for Mass spectrometry, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. Price on request 10890.12-100-T 3-Nitrobiphenyl,100 µg/mL,toluene,1mL, Price on request