525 Internal Standard Back Catalog number: 96263 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EN-1948CVS European Method EN-1948 Calibration Kit, 6 x 500ul, nonane Price on request 0916.14-500-IO 2,5-Dimethyldiphenylsulfide, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 16704-47-3 Price on request 1487.20-50-ME Phenanthryl-9-O-glucuronide, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 177194-36-4 Price on request