By Carola A. Laue, Kenneth L. Nash
This ebook discusses the purposes of radioanalytical chemistry throughout a large spectrum of interdisciplinary technology and expertise. This booklet additionally explores the background of the sector, present developments, and destiny directions.
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Additional resources for Radioanalytical Methods in Interdisciplinary Research. Fundamentals in Cutting-Edge Applications
Some techniques such as laser photoacoustic spectroscopy are capable of measuring phenomena at the 10" -10" mol/L level. , 1 part in 10 , but rarely does one see detection sensitivities at the single atom level as routinely found in some radioanalytical techniques. While techniques such as ICP-MS are replacing the use of neutron activation analysis in the routine measurement of ppb concentrations, there can be no doubt about the unique sensitivity associated with radioanalytical methods. Along with the unique sensitivity and small quantities of material associated with radiochemistry, there are certain problems associated with the use of radioactivity.
M. Robin Hutchinson 4 1 1 1 1 1 1 1 Ionizing Radiation Division, National Institute of Science and Technology, Gaithersburg, M D 20899-8462 W E A C , Food and Drug Administration, Winchester, M A 01890 Ametek, 801 South Illinois Avenue, Oak Ridge, T N 37831 Radiological Protection Institute of Ireland, 3 Clonskeagh Square, Clonskeagh Road, Dublin 14, Ireland 2 3 4 Radiochemistry is the cornerstone for certifying environmental natural-matrix Standard Reference Materials (SRMs), and for verifying environmental and radiobioassay test samples for the National Institute of Standards and Technology (NIST) traceability evaluation programs.
Separation by precipitation frequently involves the chemical process of scavenging, which is the removal of unwanted activities from solution by precipitation. In a typical application, the desired element is put in a soluble oxidation state, a precipitation of some scavenger compound such as Fe(OH) is performed, removing unwanted activities, the element of interest is oxidized or reduced to a different oxidation state and removed. Separation by precipitation is largely restricted to laboratory procedures and apart from the bismuth phosphate process used in WWII to purify Pu, has little commercial application.