Abstract Stable isotope analyses of oxygen are used in anthropology for such purposes as determination of origin of individuals, tracking migration routes or dynamics of human community relocation. The methodology related to oxygen isotope analysis has been founded on the relationship between its isotopic composition within phosphate groups of bone tissue (δ18Op) in individuals being analysed and the water consumed by such individuals (δ18Ow). Such a relationship has been observed in many species of mammals, including humans. However, the influence of culinary practices on the isotopic delta values of apatite phosphates of individuals has not yet been researched. The present study, which was conducted using laboratory rats, is an investigation of the influence of the thermal processing of water drank by such rats on the isotopic composition (δ18Op) of bone apatite. Increasing the value of the isotopic composition of water by about 6.1 ‰ during boiling resulted in an increase in the oxygen isotopic value δ18Op of rats drinking the water by about 4 ‰ (29%). It can be expected that regular consumption of heavily isotopic drinks and foods by humans may cause the δ18Op of individuals to exceed the range of isotopic environmental variability, even by a few per mille.

中文翻译：

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消耗热处理水导致大鼠骨骼中的氧同位素分馏——生物考古学应用

摘要 氧的稳定同位素分析在人类学中用于确定个体起源、跟踪迁移路线或人类社区迁移动态等目的。与氧同位素分析相关的方法建立在被分析个体骨组织磷酸盐基团 (δ18Op) 中的同位素组成与此类个体消耗的水 (δ18Ow) 之间的关系。在包括人类在内的许多哺乳动物物种中都观察到了这种关系。然而，尚未研究烹饪实践对个体磷灰石磷酸盐同位素 delta 值的影响。本研究使用实验室大鼠进行，研究了这些大鼠饮用的水的热处理对骨磷灰石的同位素组成 (δ18Op) 的影响。在沸腾过程中将水的同位素组成值增加约 6.1 ‰ 导致饮用该水的大鼠的氧同位素值 δ18Op 增加约 4 ‰ (29%)。可以预期，人类经常食用高同位素饮料和食物可能会导致个体的 δ18Op 超出同位素环境变异的范围，甚至每千分之几。