红外光谱中使水蒸气和二氧化碳的影响最小化

2019/10/10   下载量： 0 次

方案摘要

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应用领域 石油/化工
检测样本 其他
检测项目 含量分析>成分分析
参考标准 无

Atmospheric water vapor and carbon dioxide (CO2) strongly absorb in the infrared region and can interfere with the analysis and detection of weak sample peaks due to the additional peaks in the spectrum. In order to reduce the effect of the background peaks associated with H20 and CO2 it is important to maintain the concentration of water vapor and CO2 at the same level when measuring both the background and sample. In this application note, we would like to introduce a couple measurement options to minimize the effects of CO2 and water vapor, including “Shuttle Measurement” and “Purge and Vacuum”.

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Atmospheric water vapor and carbon dioxide (CO2) strongly absorb in the infrared region  and can interfere with the analysis and detection of weak sample peaks due to the additional  peaks in the spectrum. In order to reduce the effect of the background peaks associated with  H20 and CO2 it is important to maintain the concentration of water vapor and CO2 at the same  level when measuring both the background and sample. In this application note, we would like  to introduce a couple measurement options to minimize the effects of CO2 and water vapor,  including “Shuttle Measurement” and “Purge and Vacuum”. 

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