CLP Semi-Volatile Base/Neutral Surrogate Std Back Catalog number: 21016 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79539 2,4,5-TP acid (Silvex) Price on request 681698 2,4-Dicofol, 10.0 µg/ml, Isooctane, 1ml Price on request 50741 Hexavalent Chromium (Cr +6) Price on request