Pesticide Matrix Spike Solution Back Catalog number: 20120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72561 Diclofop acid Price on request 71375 4-tert-Butylphenol Price on request 72575 4-n-Octylphenol, 1000µg/mL in MeOH, 1ml Price on request