Interference Standard 4 Back Catalog number: 52041A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71015 Dibenzothiophene Price on request 8914.14 6-Methyl-2',3,4,4'-tetrachlorodiphenylmethane, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. Price on request 678148 Sulprofos, 100 µg/ml, Acetonitrile, 5ml Price on request