Comparing bioapatite carbonate pre-treatments for isotopic measurements: Part 2 — Impact on carbon and oxygen isotope compositions
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- 作者：Maura Pellegrinia ; maura.pellegrini@rlaha.ox.ac.uk" class="auth_mail" title="E-mail the corresponding author ; Christophe Snoecka ; b
- 关键词：Bioapatite pre-treatment ; Paleoclimate reconstructions ; Isotopic shifts ; Bleaching ; δ13C ; δ18O
- 刊名：Chemical Geology
- 出版年：2016
- 出版时间：20 January 2016
- 年：2016
- 卷：420
- 期：Complete
- 页码：88-96
- 全文大小：906 K
文摘
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Effects and efficiency of the most common skeletal apatite pre-treatment chemicals were tested.
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All the chemicals tested determine some isotopic shift that seems not to be only related to the removal of organic matter.
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H2O2 partly dissolves the carbonate fraction of bioapatite, while being not effective at removing organic substance.
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NaClO is efficient at removing organics but induces the adsorption of atmospheric CO2 and the precipitation of carbonate.
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N2H4·H2O (hydrazine) is efficient at removing organic matter and causes the smallest C and O isotopic shifts.