EPA Method 8260B Internal Standard Back Catalog number: 22213 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 15424.6-100MG Hexanoic-d11 acid, 100mg Price on request 682108 D8-N-Nitrosobis(2-hydroxyethyl)amine, 10mg Price on request 680274 D-Xylose, 250mg Price on request