MA - EPH Matrix Spike Back Catalog number: 92113 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71278 Resmethrin, 1000µg/ml in MeOH, 1ml Price on request 11225.7-100-IO 4-Methylbenzotriazole-methyl-d3,100 µg/mL,isooctane,1mL, Price on request 675769 Isocarbophos, 10.0 µg/ml, Ethyl acetate, 10ml Price on request