摘要
通过对豆粕样品和混有部分玉米粉的豆粕样品（以下简称混合样品）的近红外光谱分析，结果表明：混合样品中淀粉的含量与样品在２０６０ｎｍ，２０９０ｎｍ和２１６６ｎｍ处的光谱数据具有很高的相关系数，然后应用回归分析计算出线性方程，再根据玉米粉中的淀粉含量计算混合样品中的玉米粉含量。验证试验结果表明近红外光谱法所测结果的准确度很高，并且该方法具有操作简便、快速、无试剂污染等优点，所以非常适于对豆粕中混入玉米粉的含量进行测定。
The results of analysis with near￣ -in-frared spectra of soybean meal and the sampleof some maize powder within soybean meal(hereinafter referred to as mixed6ample)showed that the regression coefficient ob-tained between actual starch content in themixed sample and the spectral data(2060nm,2090nm and 2166nm)was high,and the linearregression equation was obfained by the re-gression analysis,Then the maize powdercontent in mixed sample can be calculated bystarch content inmaize powder,Validation re-sults Showed that the accuracy of NIR deter-mination was very high,in addition,thismethod has advantages of simplicity, speedingand without chemical pollution,so it is verysuitable to determine the maize powder con-tent mixed in soybean meal.
出处
《分析试验室》
CAS
CSCD
北大核心
1996年第5期84-88,共5页
Chinese Journal of Analysis Laboratory
关键词
近红外光谱
豆粕
玉米粉
淀粉
饲料
Near-infrared spectroscopy
soybean meal
maize powder
starch
