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EFFECTS OF DIFFERENT SAMPLE PREPARATION METHODS ON STABLE CARBON AND OXYGEN ISOTOPE VALUES OF BONE APATITE: A COMPARISON OF TWO TREATMENT PROTOCOLS*
Author(s) -
YODER C. J.,
BARTELINK E. J.
Publication year - 2010
Publication title -
archaeometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.716
H-Index - 67
eISSN - 1475-4754
pISSN - 0003-813X
DOI - 10.1111/j.1475-4754.2009.00473.x
Subject(s) - apatite , diagenesis , fourier transform infrared spectroscopy , stable isotope ratio , isotope , isotopes of oxygen , mineralogy , isotope analysis , δ13c , acetic acid , chemistry , mineral , isotopes of carbon , carbon fibers , geology , environmental chemistry , nuclear chemistry , materials science , total organic carbon , chemical engineering , organic chemistry , oceanography , engineering , composite number , composite material , physics , quantum mechanics
Researchers have long debated the appropriateness of stable isotope analysis of bone apatite to reconstruct the diets of ancient animals. The debate has centred, in part, on diagenesis of bone mineral from interaction with the burial environment. A number of acetic acid treatments are used to remove diagenetic carbonates from samples; however, less is known on how different protocols alter stable isotope values. We compare two common acetic acid solution treatments (0.1 M versus 1.0 M‐buffered) to examine the effects on carbon and oxygen isotope values and Fourier transform infrared spectroscopy (FTIR) spectra in human bone from different burial contexts. Results indicate that both treatments have a similar effect on isotope values and FTIR spectra in bone apatite.