Interference Standard 1 Back Catalog number: 53039 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended BDE-49 2,2',4,5'-Tetrabromodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request 79691 2-Methylundecane Price on request 673190 Aldicarb-sulfone, 10.0 µg/ml, Acetonitrile, 10ml Price on request