Pesticides Calibration LC-MS/MS Back Catalog number: 98680 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90171 Azobenzene Price on request 91704 EPA Method 502.2 Surrogate Standard Price on request 678271 Carbophenothion, 100 µg/ml, Acetonitrile, 5ml Price on request