By Carola A. Laue, Kenneth L. Nash
This booklet discusses the functions of radioanalytical chemistry throughout a large spectrum of interdisciplinary technological know-how and expertise. This e-book additionally explores the background of the sector, present traits, and destiny directions.
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Extra resources for Radioanalytical Methods in Interdisciplinary Research. Fundamentals in Cutting-Edge Applications
Hahnium does not behave like its homologue tantalum in aqueous solutions but similar to niobium or the pseudo-group 5 element, protactinium, under certain conditions. ; ACS Symposium Series; American Chemical Society: Washington, DC, 2003. 5 36 shows N b B r and TaBr to behave similarly while HaBr is less volatile. Just the opposite trend was predicted by relativistic calculations. Thus the chemistry of hahnium and rutherfordium deviates significantly from periodic table trends, a fact that is partly explained by relativistic calculations.
Three major aspects addressed by the M A P s are a) the radionuclide concentration, b) the uncertainty of the measurements being routinely conducted, and c) the complexity of the evaluation matrix. Examples of these three aspects for various NIST radionuclide M A P s are described in Table 3. , for radiobioassay and environmental applications. 10). The key phrases, as interpreted by the NIST Ionizing Radiation Division (IRD) are: comparison with national or international standards; unbroken chain of comparisons; and stated uncertainties.
Htm). ; ACS Symposium Series; American Chemical Society: Washington, DC, 2003. ch004 Table 1. ; ACS Symposium Series; American Chemical Society: Washington, DC, 2003. ch004 210p 232 2 3 b Th *u 2 3 8 u Matrix Cause Discrepancy Rocky Flats Soil - I Columbia River Sediment 300% Range Not Resolved Peruvian Soil 30% 87 Freshwater Lake Sediment Rocky Flats S o i l - I Columbia River Sediment 10% Not Resolved 20% 20% Sample Dissolution Sample Dissolution Rocky Flats S o i l - I 20% Sample Dissolution Human Lung 200% Range Blank and Heterogeneity Human Lung and Liver Freshwater Lake Sediment 200% Range 15% Heterogeneity Not Resolved Rocky Flats S o i l - I Columbia River Sediment Ocean Sediment 20% 20% Sample Dissolution Sample Dissolution 20% Sample Dissolution Human Lung 1000% Range Heterogeneity R b contamination 238 Pu 239 Pu/ Pu Rocky Flats S o i l - I 10% Sample Dissolution Am Human Lung 50% Not Resolved 2 4 l 240 Occasionally, radionuclides cannot be certified because of discrepancies among the reporting laboratories that can not be resolved (Table 2).
Radioanalytical Methods in Interdisciplinary Research. Fundamentals in Cutting-Edge Applications by Carola A. Laue, Kenneth L. Nash