14C dating with the bomb peak:: An application to forensic medicine
14C dating with the bomb peak:: An application to forensic medicine
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DOI：
10.1016/s0168-583x(00)00227-5
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发表时间：
2000-10-01
影响因子：
1.3
通讯作者：
Vycudilik, W
中科院分区：
文献类型：
--
作者：
Wild, EM;Arlamovsky, KA;Vycudilik, W
可以利用C-14炸弹的峰值作为校准曲线，对1950年后的样品进行放射性碳测年。对近期有机人体材料的“放射性碳测年”用于确定人类死亡时间的适用性进行了测试。已知死亡日期的人的头发和脂肪样本的放射性碳结果与两个死亡时间未知的人的结果进行了比较。通过这种方法可以得出未知数的死亡年份的估计。由于骨胶原在人体内的周转时间很长，因此不可能使用骨胶原的放射性碳含量来进行可靠的估计。为了研究胶原转换率的时间依赖性，我们测试了从骨基质中分离胶原的“软”化学方法。首先介绍了这项研究的放射性碳结果。(C)2000 Elsevier Science B.V.保留所有权利。
Samples originating from the time period after 1950 can be radiocarbon dated utilising the C-14 bomb peak as a calibration curve. The applicability of "radiocarbon dating" of recent organic human material for the determination of the time of death of humans was tested. The radiocarbon results from hair and lipid samples from individuals with known date of death were compared with the results from two individuals with unknown time of death. An estimate of the year of death for the unknowns could be derived by this way. Due to the long turnover time of collagen in human bones it is not possible to use the radiocarbon content of bone collagen for a reliable estimate. In order to study the time dependence of the collagen turnover we tested "soft" chemical methods for the isolation of collagen from the bone matrix. First radiocarbon results of this investigation are presented. (C) 2000 Elsevier Science B.V. All rights reserved.