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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。
Chromatographic fingerprinting of the key technical chromatographic fingerprinting mathematical analysis, the multivariate statistical analysis of the distance method. The basic principles of the distance method are explained, including a detailed description of the establishment of Euclidean space, the relationship between the vector and the point in Euclidean space, the meaning of the distance in Euclidean space, and the formula for calculating the distance in Euclidean space. Through the gas chromatography analysis of a flavor and fragrance, the application of the distance method in the chromatographic fingerprinting was specified. The corresponding relationship between the chemical response of the gas chromatography and the vector and the midpoint of the Euclidean space was pointed out. By means of distance method and standard sample, The quality of the sample to be tested. The concept of distance math is simple, intuitive, easy to understand and easy to calculate, and its ability to reflect changes in concentration or solvent volume is a suitable choice for chromatographic fingerprinting applications.