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矿物中包裹体温度、压力和气、液相成分的测定数据是阐明矿床成因、成矿物质来源、成矿物质化学条件和成矿元素运移方式等的重要地球化学参数。本文介绍了用载气热爆—气相色谱法测定气相成分(H_2、O_2、N_2、CH_4、CO、CO_2、H_2O)和用超声波提取液相成分,再用原子吸收分光光度计法和数字离子计法分别测定阳离子(K~+、Na~+、Ca~(2+)、Mg~(2+))、阴离子(F~-、Cl~-)。对实验装置、工作条件和分析步骤等本文均有叙述。并以石英标样,对实验结果作了初步讨论。其中对气相成分的提取,用载气热爆法代替真空热爆法可提高工作效率五倍。
The determination of temperature, pressure, gas and liquid composition of inclusions in minerals is an important geochemical parameter for elucidating the origin of ore deposits, the source of ore-forming materials, the chemical conditions of ore-forming materials and the transport modes of ore-forming elements. In this paper, gas phase components (H_2, O_2, N_2, CH_4, CO, CO_2, H_2O) were determined by carrier gas thermal explosion-gas chromatography and the liquid components were extracted by ultrasonic. Then atomic absorption spectrophotometer and digital ion meter (K ~ +, Na ~ +, Ca ~ (2 +), Mg ~ (2+)) and anions (F ~ -, Cl ~ -) were measured respectively. This article describes the experimental setup, working conditions and analysis steps. And the quartz standard sample, the experimental results made a preliminary discussion. One of the extraction of gas composition, with the carrier gas thermal explosion instead of vacuum thermal explosion method can improve work efficiency five times.