论文部分内容阅读
相对色谱或色质联用分析,荧光分析法具有灵敏度高、选择性好、取样量少、分析结果快速等优点。三维荧光光谱是有机物种类鉴别领域的新技术,可应用于石油馏分的分类,且具有准备过程简单、信息量丰富和费用低的优点。分析了柴油、汽油、混合油3类石油馏分的三维荧光光谱特征,应用图像信息统计原理,提出了基于三维荧光等高线特征谱分析技术的一种新方法,研究了同一馏分和不同馏分之间特征谱的相关特性,并给出了利用等高线特征谱相关系数鉴别油品的新方法,对3类馏分的分析结果表明,此方法数据客观,识别结果准确。
Relative chromatographic or chromatographic analysis, fluorescence analysis with high sensitivity, good selectivity, sampling less, the advantages of rapid analysis results. Three-dimensional fluorescence spectroscopy is a new technology in the field of organic species identification. It can be applied to the classification of petroleum fractions, and has the advantages of simple preparation process, abundant information and low cost. The three-dimensional fluorescence spectra of three petroleum fractions from diesel, gasoline and mixed oil were analyzed. Based on the statistical principle of image information, a new method based on three-dimensional fluorescence contour analysis was proposed. The effects of the same fraction and different fraction The correlation characteristics of the characteristic spectra were also given. A new method of identifying the oil products by using the correlation coefficients of the contour lines was given. The analysis results of the three fractions showed that the data were objective and the results were accurate.