| 盐水溶液中常见阴离子团的激光拉曼光谱定量分析研究 |
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| 引用本文： | 叶美芳,王志海,唐南安.盐水溶液中常见阴离子团的激光拉曼光谱定量分析研究[J].西北地质,2009,42(3):120-126. |
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| 作者姓名： | 叶美芳 王志海 唐南安 |
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| 作者单位： | 中国地调局西安地质调查中心激光拉曼光谱实验室,陕西,西安,710054 |
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| 基金项目： | 中国地质调查局"引进现代分析测试设备配套方法研究" |
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| 摘 要： | 应用RenishawinVia激光拉曼光谱仪分析研究了人工配制的钠盐溶液中CO3 2-、SO4 2-、HSO4-、HCO3-和NO3-等阴离子团及水包络峰的拉曼谱图特征，建立了拉曼光谱参数（强度面积积分）与溶液中阴离子团浓度的定量关系，提出了利用拉曼谱峰强度面积分法定量分析流体包裹体中CO3 2-、SO4 2-、HSO4-、HCO3-和NO3-等常见阴离子团浓度的方法。对HSO。一和HCO。一这样易电离的酸式阴离子团采用了净目标酸式阴离子团浓度拟合工作曲线。讨论了强度面积积分法定量分析的优越性和激光拉曼探针定量分析Cl-的难点及前景。
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| 关 键 词： | 激光拉曼光谱 阴离子 定量分析 强度面积分 流体包裹体 |
Quantitative Analysis of Several Common Anions in Salt Solutions Using Laser Raman Spectrometer |
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| YE Mei-fang,WANG Zhi-hai,TANG Nan-an.Quantitative Analysis of Several Common Anions in Salt Solutions Using Laser Raman Spectrometer[J].Northwestern Geology,2009,42(3):120-126. |
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| Authors: | YE Mei-fang WANG Zhi-hai TANG Nan-an |
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| Institution: | (Raman Spectrometry Lab, Xi＇an Center of Geological Survey, CGS , Xi＇ an 710054, China) |
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| Abstract: | Several common anions , including CO3 2-、SO4 2-、HSO4-、HCO3- and NO3-, with known concentrations in their sodium solutions, were analyzed by Renishaw inVia laser Raman spectrometer for their Raman characteristic peaks and water bands. The quantitative relationships between Raman spectrum parameters （area integrations of their intensity） and their concentrations were built, in addition, we proposed the method to determine concentrations of CO3 2-、SO4 2-、HSO4-、HCO3- and NO3- in fluid inclusions by measuring their Raman spectrum parameters （area integrations of intensity）. However, for anions that are prone to ionize in water, like HSO4- and HCO3-, we adopt their net concentrations in water for working curve fitting. Furthermore, the advantage of this method and the difficulty and perspective of quantitative analysis for Cl- in aqueous solution were discussed. |
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| Keywords: | laser Raman spectrometry anions quantitative analysis area integration fluid inclusion |
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