利用近红外光谱（NIR）并结合图形识别技术可以鉴别原材料及生产过程中不同生产阶段的中间体，也可以确定产品的组成成分、产品的水分含量、产品的微粒大小及产品混合的均匀程度等。因此，作为药品的质量控制，这是一种快速而有效的分析方法。试样多元醇、纤维素与少量增稠剂组 The use of near infrared spectroscopy (NIR) combined with pattern recognition technology can identify raw materials and intermediates at different stages of production, and also determine the composition of the product, the moisture content of the product, the particle size of the product, and the degree of uniformity of product mix . Therefore, as a quality control of medicines, this is a fast and effective analytical method. Sample polyols, cellulose and a small amount of thickener group