| 一种标定新方法在FTIR定量分析中的应用 |
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| 引用本文： | 连晨舟,吕子安,季春生,李定凯,徐旭常. 一种标定新方法在FTIR定量分析中的应用[J]. 光谱学与光谱分析, 2004, 24(11): 1323-1326 |
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| 作者姓名： | 连晨舟 吕子安 季春生 李定凯 徐旭常 |
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| 作者单位： | 清华大学,煤的清洁燃烧技术国家重点实验室,北京,100084;清华大学,煤的清洁燃烧技术国家重点实验室,北京,100084;清华大学,煤的清洁燃烧技术国家重点实验室,北京,100084;清华大学,煤的清洁燃烧技术国家重点实验室,北京,100084;清华大学,煤的清洁燃烧技术国家重点实验室,北京,100084 |
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| 基金项目： | 国家重点基础研究专项经费(2001CB409605)资助项目 |
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| 摘 要： | 利用傅里叶变换红外(FTIR)光谱技术可以对气体组分的浓度进行连续的在线定量分析。在定量分析过程中，对FTIR进行标定是非常重要的环节之一，直接关系到定量分析是否可以进行和定量分析的精度。本文提出了一种新的标定方法(称之为“积分法”)，以CO、HCI和水蒸气为例完成的实验结果表明：这一方法与传统方法(标气法)相比具有许多优点，准确性和稳定性都很好；尤为重要的是，对于传统方法无法解决的常温下为液态的气体物质的标定问题，利用这一新方法可以迎刃而解，而且有很好的精度。
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| 关 键 词： | 傅里叶变换红外(FTIR) 气体分析 标定方法 |
| 文章编号： | 1000-0593(2004)11-1323-04 |
| 修稿时间： | 2003-08-16 |
A Novel Calibration Technique for Quantitative Analysis of FTIR Spectra |
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| Chen-zhou Lian,Zi-an Lü,Chun-sheng Ji,Ding-kai Li,Xu-chang Xu. A Novel Calibration Technique for Quantitative Analysis of FTIR Spectra[J]. Spectroscopy and Spectral Analysis, 2004, 24(11): 1323-1326 |
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| Authors: | Chen-zhou Lian Zi-an Lü Chun-sheng Ji Ding-kai Li Xu-chang Xu |
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| Affiliation: | State Key Laboratory of Clean Combustion of Coal, Tsinghua University, Beijing 100084, China. |
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| Abstract: | Fourier transform infrared spectroscopy(FTIR)can be used for the continuously on line quantitative determination of the concentrations of several gas components in smoke gas. The process of acquiring accurate calibration of spectra is one of the most important steps in the quantitative analysis. In the present paper, a novel calibration technique was proposed and evaluated by the results of CO and HCl. Data obtained by this new technique were compared to those of conventional concentration based calibration. The results showed that this calibration technique is feasible, and its reliability and validity were also confirmed. Further more, it has several other advantages, which will also be discussed here. Finally, the calibration problem that the substances are liquid at ambient temperature was solved by this technique. |
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| Keywords: | FTIR Gas analysis Calibration technique |
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