Surrogate Standard Back Catalog number: 92469 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50446 ICP Control Mix #2 Price on request 673647 Paraoxon-ethyl, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 673785 Demeton-S-methyl-sulfoxide, 100 µg/ml, Ethyl acet Price on request