距离法在色谱指纹图谱分析中的应用

Application of Distance Method to Chromatogram Fingerprint Analysis

对色谱指纹图谱的关键性技术色谱指纹图谱数学解析,进行了多元统计分析中距离法解析。就距离法的基本原理进行了解释,其中包括详细说明了欧氏空间的建立,向量与欧氏空间中点的关系,欧氏空间中距离的意义,及欧氏空间中距离的计算公式。通过一个香精香料的气相色谱分析,具体指明了距离法在色谱指纹图谱中的应用,着重指出了气相色谱化学响应量与向量及欧氏空间中点的对应关系,借助于距离法与标准样品,对待测样品进行质量判定。距离法数学概念简单、直观、易于理解,计算简便,且其能够体现浓度或溶剂的量的变化而带来的变化,在色谱指纹图应用中是一种合适的选择。

Carry on mathematics resolution to chromatogram fingerprint with the distance method in the multivariate statistical analysis and explain the basic principle of distance method. The principle includes the establishment of euclidan space, the relation of vector and point of euclidan space, the meaning of distance of euclidan space. Analyzes Flavor by GC, then analyzes the data in Chromatogram Fingerprint to with distance method.Point out to the relation of the Chemical responsend of GC and vector. Point out to the relation of vector and point of euclidan space. According to data of standard sample, judges the quality of sample to be measured by a distance method. Concept of the distance method is simple and intuitive and comprehensive easily, and its calculation is convenient, and it can represent the change of the quantity thickness and solvent, it is a kind of suitable choice in the application of GC.