1.中国人民公安大学侦查与刑事科学技术学院，北京 102600；2. 公安部物证鉴定中心，北京 100038； 3. 南京森林警察学院，南京 210023

摘要：氢、氧稳定同位素作为一类化学示踪物质，在地理科学、环境生态和法庭科学等领域均有应用。在法庭科学研究领域，指甲作为一种记录人在不同时段内摄入氢、氧稳定同位素情况的载体，在推断人的生活地域变化轨迹方面具有很大的潜力，具有广阔的应用前景。本文从氢、氧稳定同位素溯源的基本原理，人指甲中氢、氧稳定同位素前处理方法和检验方法，人指甲氢、氧稳定同位素溯源技术的法医学应用等方面展开综述，并对稳定同位素溯源技术的发展等方面做了简要展望。

Research and application on hydrogen and oxygen stable isotopes of human fingernails in forensic science

HE Xinlong1, MEI Hongcheng2*, WANG Jifen1, ZHU Jun2, LIU Changjing3, HU Can2, HE Ya1, ZHANG Xiumei1, HE Yulu1 

1.School of Investigation and Forensic Science, People’s Public Security university of China, Beijing 102600; 2. Institute of Forensic Science, Ministry of Public Security, Beijing 100038; 3. Nanjing forest police college, Nanjing 210023 

Abstract: As an emerging chemical tracer technology, the hydrogen and oxygen stable isotopes have a wide range of applications in geoscience, environmental ecology and forensic science. The fingernail, a new type of biomarker, possess a high evidence and application value in forensic science and its analytical potential is gradually being tapped. The paper conducted a review from basic principle of hydrogen and oxygen stable isotopes traceability, pretreatment methods and determination methods in human fingernails and the application in forensic science. Besides, a brief prospect was also given about its development.

Keywords: Hydrogen and oxygen Stable Isotope; Fingernail; Forensic Science