Arsenic (As) Back Catalog number: 50194 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9018 Benzo(k)fluoranthene Price on request 681475 N,N-Dimethylsulfamide, 10.0 µg/ml, Acetonitrile, Price on request 72114 Use Part# 79326 tert-Butyl hydroquinone (TBHQ) Price on request