Method 200.8/1638/1640 Internal Standard Back Catalog number: 53145 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70049 Bromoform Price on request 677158 Dibutyltin dichloride, 1000 µg/ml, Methanol, 5ml Price on request 1045.15-K-IO n-Nonylcyclohexane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2883-02-5 Price on request