| CCD近红外光谱快速测定柴油中的芳烃含量 |
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| 引用本文： | 徐广通,袁洪福,陆婉珍.CCD近红外光谱快速测定柴油中的芳烃含量[J].分析化学,1999,27(1):29-33. |
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| 作者姓名： | 徐广通 袁洪福 陆婉珍 |
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| 作者单位： | 石油化工科学研究院,北京,100083 |
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| 摘 要： | 研究了采用电感耦合器件（ＣＣＤ）近工外光谱仪在短波近红外区域（７００－１１００ｎｍ）、利用偏最小二乘回归（ＰＬＳ）测定柴油中芳烃含量的方法。考虑样品颜色对短波近红外光谱的影响，对波长范围的选择和基线处理方式进行了研究。考察了样品进入光路的时间对测定结果的影响。将ＣＣＤＮＩＲ对未知样品的预测结果与傅里叶变换近红外光谱（ＦＴ－ＮＩＲ）在长波近红外范围（１０００－２０００ｎｍ）的预测结果及液相色谱的测定
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| 关 键 词： | 近红外光谱 电感耦合器件 偏最小二乘回归 柴油 芳烃 |
Determination of Aromatics in Diesel by Charge Coupled Device-Near-Infrared Spectroscopy |
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| Xu Guangtong,Yuan Hongfu,Lu Wanzhen.Determination of Aromatics in Diesel by Charge Coupled Device-Near-Infrared Spectroscopy[J].Chinese Journal of Analytical Chemistry,1999,27(1):29-33. |
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| Authors: | Xu Guangtong Yuan Hongfu Lu Wanzhen |
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| Abstract: | A chaige-coupled-device-near-Infrared spectrometer ( CCD-NIR) was used to determine aromatics content in diesel in short wave near infrared spectral region (700 -1100 nm) with partial least square regression. Considering the effect of diesel color on the spectroscopy, the spectral region used to calibration was optimized and the baseline was treated by different methods. The effect of light radiation time on the diesel was also studied. The result predicted by CCD-NIR to unknown samples was compared with that by FT-NIR in long wave spectral region (1000 - 2000 nm) and that by high performance liquid chromatography. The relative standard deviation of the method was 0.2%. |
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| Keywords: | Near-infrared spectroscopy charge coupled device partial least square regression aromatics diesel |
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