PAH-Mix 20, 10 ng/µl, 10ml Back Catalog number: L20950020AL Availability: In the manufacturer's stock Price on request - + Recommended 30102 EPA Method 551.1 Surrogate Standard Price on request 72082 Quinclorac Price on request 680840 10,11-Dihydro-10-hydroxycarbamazepine, 100 µg/ml, Price on request