Method 200.8/1638/1640 Internal Standard Back Catalog number: 53145 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95360 Spike Mix Price on request 2907.10-10MG 3,4-Dihydro-6-methyl-2(1H)-quinolinone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 20150-83-8 Price on request 50671 Anion Mix #1 Price on request