关键词: 金属稳定同位素, 法庭科学, 来源推断, 电感耦合等离子体质谱

Abstract: The technology of traditional stable isotopes H, C, O, N, S is mature and has been widely used in different fields. With the development of inorganic mass spectrometry, heavy metal isotopes have appeared in some new research fields in recent decades, and more in-depth research has been conducted in geology, environmental analysis, food analysis, and medical treatment. In particular, many achievements have been made in the provenance deduction of geological materials and the interpretation of change, the precise identification of source of heavy metal pollutants, the identification of food sources, the identification of counterfeit and inferior products, and the study of element metabolism in human body. This paper summarized the research carried out in the above fields of metal isotope ratio inspection, and proposed the application prospects of this technology in forensic science.

Key words: metal stable isotope, forensic science, provenance deduction, inductively coupled plasma-mass spectrometry（ICP-MS）