Instrumental Neutron Activation Analysis of Standard Reference Material 1941, Organics in Marine Sediment
The National Institute of Standards and Technology has developed a new Standard Reference Material 1941, “Organics in Marine Sediment.” In addition to the organic constituents, over 30 elements have been determined by instrumental neutron activation analysis and prompt-gamma activation analysis. The homogeneity of the material was investigated and relative standard deviations of single- element concentrations in 250-mg samples were found to be 1% or less with regard to major inorganic constituents and rare earth elements. A slightly higher relative SD was found for elements that may stem from biological or anthropogenic input. The element concentrations determined in this work are discussed in comparison to concentrations in other similar reference materials. Concentrations for 31 elements will be included for information on the certificate.
Index EntriesElemental analysis environmental monitoring gamma spectrometry instrumental neutron activation analysis (INAA) prompt gamma activation analysis (PGAA) sediment standard reference material
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