Anions Mix Back Catalog number: 59287 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 56332 EPA Method 200.8 Internal Standard Price on request 673685 Pyrazophos, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 2034.12-50-NN 1,2,3,4-Tetrachlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL, Price on request