Interference Standard 3 Back Catalog number: 52050 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11445.21-100-IO Diphenyl-3-isopropylphenyl phosphate,100 µg/mL,isooctane,1mL, Price on request 2539.8-100MG 4-Hydroxyisophthalic acid (4-Hydroxybenzene-1,3-dicarboxylic acid), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 636-46-4 Price on request 56424 Chromium (Cr), 1µg/ml in 2%-HNO3/Water, 4 x 25ml Price on request