流体包裹体是研究流体形成、迁移、演化及其伴随的地球化学过程的直接样品，限于多期次和多来源特性，群体分析结果代表性相对较差，单个流体包裹体元素组成定量分析方法已经成功应用于对成矿流体演化及成因机制的研究中，而单个流体包裹体的H同位素分析仍是国际难题。本项目拟研发离子探针可分析的液体样品靶制备方法、研发天然样品探针片中流体包裹体的埋藏深度确定和定量抛磨方法以定位可分析对象、探索离子探针直接测试流体包裹体仪器条件，从而建立起离子探针对单流体包裹体H同位素测试的工作流程，为进一步限定成矿流体来源及演化提供新的技术手段。

Fluid inclusions represent a direct source of information on the formation, migration, evolution and geochemical behaviour of the ore-forming fluids. Considering the multi-stage generation of the fluid inclusions from fluids of different sources, results of a bulk analysis of fluid inclusions are not representative. Quantitative element analysis of individual fluid inclusions has been successfully applied to the study of ore-forming fluid evolution and mineralization mechanism. In contrast, the hydrogen isotopic analysis of individual fluid inclusions has been regarded as a challenging scientific problem to date. However, in situ analysis of hydrogen isotopes in individual fluid inclusions seems to provide reliable evidence for the source and evolution process of ore-forming fluid. This project thus aims to establish a method of SIMS hydrogen isotopic analysis of the inclusions in the liquid state. For this purpose, it is intended to develop special methods of 1) mount preparation for liquid samples; 2) depth-controled polishment of the host crystal to locate selected fluid inclusions as it is required for the analysis and 3) in situ study of aqueous samples using SIMS.