小波变换-偏最小二乘算法及其在复方甲硝唑注射液分析中的应用

Method of Wavelet Transform-Partial Least Squares and Its Application to Compound Metronidazole Injection

提出了结合小波变换的偏最小二乘法（ ＷＰＬＳ） ， 即先对光谱信号进行小波变换， 去除噪声， 再用偏最小二乘法对多组分同时测定。 将该法用于模拟体系及复方甲硝唑注射液体系， 结果表明， 该法优于偏最小二乘法。

A method combining partial least square with wavelet transform is proposed. The spectral signals were transferred by wavelet transform, and denoised, then the components were determined by partial least squares simultaneously. The method was used in simulated systems and compound metronidazole injection. The experimental data showed that the results were better than those determined by partial least squares.