Gas Internal/Surrogate Standard Back Catalog number: 92805 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 682387 Ipronidazole, 100 µg/ml, Methanol, 5ml Price on request 3675.15-K-IO 4-Methoxyphenanthrene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 15638-06-9 Price on request N-ETFOSE-M 2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol, 50µg/ml in MeOH, 1,2ml Price on request