| 烤烟烟叶钾含量的近红外光谱法快速测定 |
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| 引用本文： | 刘岱松,金兰淑,杨朝辉,韩晓日,林国林. 烤烟烟叶钾含量的近红外光谱法快速测定[J]. 土壤通报, 2010, 0(2) |
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| 作者姓名： | 刘岱松 金兰淑 杨朝辉 韩晓日 林国林 |
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| 作者单位： | 沈阳农业大学土地与环境学院;湖北省十堰市烟草公司; |
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| 摘 要： | 随机选取烤烟建模集样品(150个)和检验集样品(35个),利用傅里叶变换近红外光谱仪测定烤烟样品的近红外光谱,并用常规化学分析法测定烤烟样品的含钾量。采用偏最小二乘法(PLS)把测得的烤烟样品的光谱值与烤烟钾含量的数值拟合建立定标模型,经分析得出:预测模型分析烤烟钾含量的决定系数(R2)为0.909,预测标准差(RMSEP)为0.119%。近红外法测定结果与常规化学分析方法的结果具有较好的相关性,能够应用于烤烟钾含量的快速诊断。
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| 关 键 词： | 烤烟 含钾量 近红外光谱 |
Rapid Determination of Potassium Content in Flue-cured Tobacco Leaves by Near Infrared Reflectance Spectroscopy |
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| LIU Dai-song,JIN Lan-shu,YANG Zhao-hui,HAN Xiao-ri,LIN Guo-lin. Rapid Determination of Potassium Content in Flue-cured Tobacco Leaves by Near Infrared Reflectance Spectroscopy[J]. Chinese Journal of Soil Science, 2010, 0(2) |
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| Authors: | LIU Dai-song JIN Lan-shu YANG Zhao-hui HAN Xiao-ri LIN Guo-lin |
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| Affiliation: | LIU Dai-song1,JIN Lan-shu1,YANG Zhao-hui2,HAN Xiao-ri1,LIN Guo-lin1(1.College of L, , Environment,Shenyang Agriculture University,Shenyang 110866,China,2.Shiyan Tobacco Company of Hubei Province,Shiyan 442000,China) |
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| Abstract: | With randomly selected 150 calibration samples and 30 prediction samples,the near infrared reflectance spectroscopy(NIRS) was used to analyze potassium in flue-cured tobacco leaves and the conventional chemical method was also used to detect the potassium contents in tobacco.The prediction model by PLSR method was established.The results showed that R2 and RMSEP of prediction model were 0.909 and 0.119% respectively.The calculated value and actual value correlated very well,and NIRS can be used to analyze p... |
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| Keywords: | Flue-Cured Tobacco Leaves Potassium NIRS |
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