Application of Near Infrared Spectroscopy in Liquid Propellant Analysis Wang Juxiang, Shen Gang, Xing Zhina (Department of Mechanical Engineering, Naval Aeronautical Engineering Institute, Yantai 264001) Abstract The application of near infrared (NIR) spectroscopy in liquid propellant was studied for example of analysis of all compositions and character in mixed amines. The calibration models were determined with partial least square regression. The result predicted by NIR methed was compared with that by standard method, the repeatability of NIR results was reviewed. The characteristics of NIR in liquid propellant are summarized and particular advantages of NIR in liquid propellant are pointed out. Key words Mixed amines, Near infrared spectroscopy, Chemometrics, Regression analysis, Liquid propellant 近红外光谱分析技术在液体推进剂分析中的应用 王菊香 申 刚 邢志娜 (海军航空工程学院机械工程系 烟台 264001) 摘要 以混胺各项组成和性质的分析为例，研究了近红外分析技术在液体推进剂分析中的应用。用偏最小二乘法线性回归分析建立了混胺各组成和性质的校正模型。将近红外法测定结果与标准方法测定结果进行了比较，对光谱测量的重复性进行了考察。总结了这种分析方法在液体推进剂中的应用特点。 关键词 混胺 近红外光谱 化学计量学 回归分析 液体推进剂 王菊香 女，32岁，硕士，讲师，从事液体推进剂分析的教学和科研工作。 2003-03-31收稿，2003-08-13修回 (PDF全文下载c04023)