Interference Standards Set Back Catalog number: 53038 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 54563 Phosphate as (PO43-) Price on request 71937 2,6-Dinitrophenol Price on request 0205.30-200-T Tetrabenz[a,c,h,j]anthracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 215-11-2 Price on request