WA EPH Matrix Spike Mix Back Catalog number: 51145 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681199 4-Chlorobenzoic acid, 250mg Price on request 3408.15-100 Fluazifop, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 69335-91-7 Price on request 71217 1-Ethylnaphthalene Price on request