Multi-Elements Mix Back Catalog number: 50155 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 30102 EPA Method 551.1 Surrogate Standard Price on request 8541.19-1G Hexadecyltrimethylammonium chloride, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 112-02-7 Price on request S-4115-ASS-AN Check Mix, EPA 610 8 Analytes, each concentration as listed in acetonitrile; units: 1x1mL, 5x1mL 0711.10 Naphthalene [91-20-3] 100 µg/mL 0002.12 Acenaphthylene [208-96-8] 100 µg/mL 0732.12 Acenaphthene [83 Price on request