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H_2O~+是岩矿分析的重要项目之一,目前主要是用平菲耳重量法,其分析过程很长。CO_2也是常需测定的项目,现普遍用非水滴定法,此法缺点是滴定终点不敏锐。对单矿物分析来说,这些方法消耗样品都太多。须寻找一种速度快、消耗样品少的方法。气相色谱法是达到上述要求的较好方法。国内专为岩矿分析设计的CXL-101气相色谱仪投入市场后,用这个方法测定H_2O~+和CO_2渐多。在前人工作的基础上,我们打算更广泛地予以应用,包括在单矿物及大量的一般硅酸盐分析上。
H_2O ~ + is one of the important items in rock and ore analysis. At present, it is mainly used Pingfei ear weight method, the analysis process is very long. CO_2 is often needed to determine the project, is now generally non-aqueous titration method, the disadvantage of this method is titration end point is not sharp. For single mineral analysis, these methods consume too much sample. Have to find a fast, low-cost method of sample. Gas chromatography is a better way to meet the above requirements. Domestic CXL-101 gas chromatography designed specifically for rock analysis into the market, using this method to measure H_2O ~ + and CO_2 more. Based on our predecessors’ work, we intend to apply it more widely, including in single minerals and a large number of general silicate analyzes.