"Dioxin-Like" PCBs Calibration Kit , 7 x 500ul, nonane Back Catalog number: WP-CVS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 52072 Spiking Standard 3 Price on request 43007 Benzo(a)anthracene-d12 Price on request 677477 Triphenylmethane, 250mg Price on request