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Elemental contributions from minor a...

Dailey Crable, Ashlee Rae.

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Elemental contributions from minor and major constituents of bone on the separation of radiostrontium.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Elemental contributions from minor and major constituents of bone on the separation of radiostrontium./
作者:	Dailey Crable, Ashlee Rae.
面頁冊數:	85 p.
附註:	Source: Masters Abstracts International, Volume: 51-05.
Contained By:	Masters Abstracts International51-05(E).
標題:	Chemistry, General. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1534195
ISBN:	9781267932211

Elemental contributions from minor and major constituents of bone on the separation of radiostrontium.
Dailey Crable, Ashlee Rae.

Elemental contributions from minor and major constituents of bone on the separation of radiostrontium. - 85 p.

Source: Masters Abstracts International, Volume: 51-05.

Thesis (M.S.)--University of Nevada, Las Vegas, 2012.

While many methods exist to separate and analyze radionuclides from a variety of environmental matrices, the performance of all of these methods is often limited by other interfering constituents that are consistently found in most of these samples. The presence of such constituents can significantly reduce the recovery of the radioisotopes of interests and lead to incomplete separations.

ISBN: 9781267932211Subjects--Topical Terms:

1021807
Chemistry, General.

Elemental contributions from minor and major constituents of bone on the separation of radiostrontium.
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245 1 0 $a Elemental contributions from minor and major constituents of bone on the separation of radiostrontium.
300 $a 85 p.
500 $a Source: Masters Abstracts International, Volume: 51-05.
500 $a Advisers: Ralf Sudowe; Ken Czerwinski.
502 $a Thesis (M.S.)--University of Nevada, Las Vegas, 2012.
520 $a While many methods exist to separate and analyze radionuclides from a variety of environmental matrices, the performance of all of these methods is often limited by other interfering constituents that are consistently found in most of these samples. The presence of such constituents can significantly reduce the recovery of the radioisotopes of interests and lead to incomplete separations.
520 $a Strontium has the same oxidation state and a similar atomic radius as calcium and is therefore readily able to substitute for calcium in lattice sites. This similarity in behavior leads to the preferential accumulation of strontium in newly formed bone. The study of radiostrontium uptake and the analysis of bone samples is therefore of great interest for radiation biology, internal dosimetry, and consequence management. The fact that one of the strontium isotopes of greatest biological importance, 90Sr, is a pure beta-emitter prevents the use of non-destructive assay techniques and necessitates the development of sophisticated separation methods for radiochemical analysis.
520 $a It has been previously reported in the literature that the matrix constituents present in bone can significantly affect the strontium recovery from bone samples. Bone (hydroxyapatite) is of particular interest when evaluating the effect of common environmental interferences due to the high concentrations of calcium and phosphate present. The goal of this work is to determine the major and minor constituents present in various samples of bone ash and to determine their influence on method performance and strontium recovery. The work presented exploited the use of a variety of radioanalytical separation and isotope detection techniques. Focusing on the characterization of the bone ash, Scanning Electron Microscopy and X-ray Powder Diffraction techniques were used to determine the morphology, to verify the crystalline pattern, and to analyze for any contaminants within each unique bone ash sample. The information obtained helped to determine the elements of interest for batch experiments, which were conducted in order to determine the individual elemental effects that may play a role on the retention of radiostrontium isotopes onto the SR Resin purchased from Eichrom Technologies Inc. The final set of experiments performed were column studies, which focused on the separation of radiostrontium, recovery yields, and the effect of common environmental contaminants on the separation as a whole. Techniques for the detection of radioactive and stable strontium included Liquid Scintillation Counting, Gamma Spectroscopy, and Inductively Coupled Plasma - Atomic Emissions Spectroscopy.
590 $a School code: 0506.
650 4 $a Chemistry, General. $3 1021807
650 4 $a Chemistry, Inorganic. $3 517253
650 4 $a Chemistry, Nuclear. $3 1916260
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710 2 $a University of Nevada, Las Vegas. $b Chemistry. $3 2091880
773 0 $t Masters Abstracts International $g 51-05(E).
790 1 0 $a Sudowe, Ralf, $e advisor
790 1 0 $a Czerwinski, Ken, $e advisor
790 1 0 $a Robins, Kathleen $e committee member
790 1 0 $a Hatchett, David $e committee member
790 1 0 $a Moody, Ken $e committee member
790 1 0 $a Buechler, Ralph $e committee member
790 $a 0506
791 $a M.S.
792 $a 2012
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1534195