近红外漫反射光谱逐步回归分析测定饲料中水份含量

Near-infrared diffuse reflectance spectra analysis of forage moisture by stepwise regression

本文用近红外漫反射光谱逐步回归法测定了饲料的水份含量，预测结果的平均相对误差为3．8％。该法具有方便、快速、无损、不需化学前处理等优点，特别适用于大量样品的分析和在线监控。

A multivariate analysis techique called stepwise regression is used for the determination of forage moisture by near-IR diffuse reflectance spectra, with an average relative prediction error of 3. 8%. The most suitable application of this method is online testing with its rapidity and free from pretreatment and destruction.