Influence of Sample Annum and Distribution of Chemical Values on NIR Veracity
LI Jun-hui1, QIN Xi-yun2, ZHANG Wen-juan1, CAI Gui-min1, YANG Yu-hong2, ZHAO Long-lian1, CHANG Zhi-qiang1, ZHAO Li-li1, ZHANG Lu-da3
1.College of Information and Electrical Engineering, China Agricultural University, Beijing 100094, China 2.Yunnan Tobacco Science Research Institute, Yuxi 653100, China 3.College of Science, China Agricultural University, Beijing 100094, China
Abstract：The influence of sample annum and the distribution of sample component on NIR veracity was studied with homemade grating diffuse NIR instrument using Yunnan flue-cured tobacco. Results showed that sample annum had an obvious influence on the total sugar and nicotine models, but had an unconspicuous influence on the total-nitrogen model. Models set up by samples, whose component content distribution was normal school, was better than those set up by even distribution. The conclusion in this study has a significant referenced value for the method and principle to select representative samples to modeling from a large amount of specimens.
Key words：NIR;Flue-cured tobacco;Sample annum;Distribution of chemical value
李军会1,秦西云2,张文娟1,蔡贵民1,杨宇虹2,赵龙莲1,常志强1，赵丽丽1,张录达3 . 样品年份、化学值分布参数对近红外检测结果的影响[J]. 光谱学与光谱分析, 2007, 27(09): 1754-1756.
LI Jun-hui1, QIN Xi-yun2, ZHANG Wen-juan1, CAI Gui-min1, YANG Yu-hong2, ZHAO Long-lian1, CHANG Zhi-qiang1, ZHAO Li-li1, ZHANG Lu-da3 . Influence of Sample Annum and Distribution of Chemical Values on NIR Veracity. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(09): 1754-1756.
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