CLP Semi-Volatile Base/Neutral Surrogate Std Back Catalog number: 21016 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59541 Anions Mix #2 Price on request 678007 Mevinphos, 100 µg/ml, Acetonitrile, 1ml Price on request 40012 EPA Method 607 - Nitrosamines Price on request