Methodological Considerations for the Use of Acid-Based Pre-Treatment Protocols for Carbon and Oxygen Analysis of Tooth Enamel.

ABSTRACT:

Rationale

Chemical pre-treatment is a common methodological step aimed to remove exogenous materials introduced to archaeological tooth enamel in the burial environment through diagenetic processes. However, some of these methods, involving the use of oxidising reagents such as NaClO, H₂O₂, as well as weak acids like CH₃COOH, have been shown to alter the chemical composition and stable isotope values of enamel. Here, we aim to re-examine the effects of commonly used pre-treatment protocols on bioapatite δ¹³C and δ¹⁸O values, and investigate the relationship between diagenetic alteration and measured isotope values, as indicated by pre-screening using attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscop

SUBMITTER: Varkuleviciute K 

PROVIDER: S-EPMC12314474 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature