EPA Method 8260B Purgeable Internal Standard Back Catalog number: 28013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673408 Phenthoate, 10.0 µg/ml, Acetonitrile, 10ml Price on request 70598 Crotoxyphos, 1000µg/ml in in hexane:acetone [9:1], 1ml Price on request 58103 Lithium (Li) Price on request