New NIST sediment SRM for inorganic analysis.

Publisher: Springer-Verlag Country of Publication: Germany NLM ID: 101134327 Publication Model: Print-Electronic Cited Medium: Print ISSN: 1618-2642 (Print) Linking ISSN: 16182642 NLM ISO Abbreviation: Anal Bioanal Chem Subsets: MEDLINE

Original Publication: Heidelberg : Springer-Verlag, 2002-

Geologic Sediments/*chemistry ; Government Agencies/*standards ; Inorganic Chemicals/*analysis; Certification ; Reference Standards ; Trace Elements/analysis ; United States

NIST maintains a portfolio of more than 1300 standard reference materials (SRM), more than a third of these relating to measurements in the biological and environmental fields. As part of the continuous renewal and replacement efforts, a set of new marine sediments has been recently developed covering organic and inorganic determinations. This paper describes the steps taken in sample preparation, homogeneity assay, and analytical characterization and certification with specific emphasis on SRM 2702 inorganics in marine sediment. Neutron activation analysis showed the SRM to be highly homogeneous, opening the possibility for use with solid sampling techniques. The certificate provides certified mass fraction values for 25 elements, reference values for eight elements, and information values for 11 elements, covering most of the priority pollutants with small uncertainties of only several percent relative. The values were obtained by combining results from different laboratories and techniques using a Bayesian statistical model. An intercomparison carried out in field laboratories with the material before certification illustrates a high commutability of this SRM.

0 (Inorganic Chemicals)
0 (Trace Elements)

Date Created: 20040122 Date Completed: 20050307 Latest Revision: 20160512

20250114

10.1007/s00216-003-2417-9

14735275