VRX 8260 IS & Surrogate Standard Back Catalog number: 92477 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 27013 EPA Method 8260B - Purgeable Internal Std Price on request 83560 p-Tolualdehyde-DNPH, 100µg/ml in Acetonitrile, 1ml Price on request 10387.17-K-ME Zopiclone-N-oxide Price on request