Neutron activation analysis of dinosaur bones for uranium, thorium, and rare earth elements

Ganzorig, Zh.; Gun-Aazhav, T.; Gérbish, Sh.; Otgonsuren, O.; Sérééter, Zh.; Chadraabal, I.; Chultém, D.

doi:10.1007/bf01215827

Cited by 2 publications

(1 citation statement)

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“…Elemental analysis in bones can be accomplished by a variety of analytical techniques including inductively coupled plasma mass spectrometry (ICP-MS), [9][10][11] inductively coupled plasma atomic emission spectrometry (ICP-AES), 12 neutron activation analysis (NAA), 13,14 X-ray fluorescence (XRF), 15 proton-induced X-ray emission (PIXE), 16 and laser-induced breakdown spectroscopy (LIBS). 17 LIBS has also been used in various other archaeological applications.…”

Section: Introductionmentioning

confidence: 99%

Using Laser-Induced Breakdown Spectroscopy to Assess Preservation Quality of Archaeological Bones by Measurement of Calcium-to-Fluorine Ratios

2011

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We determined calcium-to-fluorine (Ca/F) signal ratios at the surface and in the depth dimension in approximately 6000-year-old sheep and cattle bones using Ca I 671.8 and F I 685.6 emission lines. Because the bones had been previously analyzed for collagen preservation quality by measurement of C/N ratios at the Oxford Radiocarbon Accelerator Unit, we were able to examine the correlation between our ratios and quality of preservation. In the bones analyzed in this experiment, the Ca I 671.8/F I 685.6 ratio was generally lower and decreased with successive laser pulses into poorly preserved bones while the ratio was generally higher and increased with successive laser pulses into well-preserved bones. After 210 successive pulses, a discriminator value for this ratio (5.70) could be used to distinguish well-preserved and poorly preserved bones regardless of species.

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