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用小波变换的方法分析多组分溶液的吸收光谱， 可以测量多组分混合溶液中各组分的含量。我们只需知道待测组分的标准吸收光谱和混合溶液的吸收光谱， 而不必知道其它的组分和噪声的性质， 也不必用物理或化学的方法将待测组分从混合物中提取出来， 利用小波变换的时频特性和多尺度的性质， 在一个合适的尺度下， 可以准确地测量待测组分的浓度而抑制其它组分的影响。用同样的方法， 可以将混合物中所有已知组分的浓度计算出来。也就是说， 只要知道混合物中某一物质存在，利用紫外－ 可见光光谱分析仪，就可以将该物质的含量求出来。这种方法与传统的方法相比， 要求的条件较低， 不需物理或化学的分离， 分析速度快， 精确度也较高。
Using wavelet transform to analyze the absorption spectrum of multi-component solution, the content of each component in multi-component mixed solution can be measured. We only need to know the standard absorption spectra of the components to be measured and the absorption spectra of the mixed solution without having to know the nature of the other components and the noise or the physical or chemical methods of extracting the components to be tested from the mixture, Using the time-frequency characteristics and the multi-scale nature of wavelet transform, it is possible to accurately measure the concentration of the components to be tested while suppressing the influence of other components at an appropriate scale. In the same way, the concentration of all known components in the mixture can be calculated. In other words, as long as you know a mixture of substances exist, the use of UV-Vis spectrometer, you can find the content of the substance. Compared with the traditional method, this method requires lower conditions, no physical or chemical separation, high analysis speed and high accuracy.