Interference Standard 4 Back Catalog number: 52041A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2448.8-K-IP 4-Methyl-2-nitroanisole, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 119-10-8 Price on request 59874 Beryllium (Be) Price on request 681920 Fensulfothion-oxon-sulfone, 10.0 µg/ml, Cyclohexa Price on request