• Blank values of 30 elements in 19 filter materials determined by ICP-MS. 

      Berg, Torunn; Røyset, Oddvar; Steinnes, Eiliv (NILU TR;13/91, Research report, 1991)
      The blank values of 30 elements in 19 different filter types from Gelman, Millipore, Nuclepore and Whatman have been compared. The filter media were extracted with dilute nitric acid and the element contents determined by ...