Sodium (Na) Back Catalog number: 59283 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91531 PAH Standard Price on request 50608 Chloride 0.50 µg/mL (Cl-) Price on request PN-72S 1,2,4,5,7,8-Hexachloronaphthalene, 1.2ml x 50ug/ml, nonane Price on request