Method 200.8/1638/1640 Internal Standard Back Catalog number: 53145 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1310.36-K-IOX5 n-Hexatriacontane-d74, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 16416-34-5 Price on request 50665 Nitrate as NO3- Price on request C10206355 2-Aminonaphthalene, 10mg Price on request