| 近红外光谱法应用于蒲黄总灰分的定量预测研究 |
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| 引用本文： | 刘薇,肖新月,魏锋,林瑞超.近红外光谱法应用于蒲黄总灰分的定量预测研究[J].药物分析杂志,2011(10). |
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| 作者姓名： | 刘薇 肖新月 魏锋 林瑞超 |
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| 作者单位： | 中国食品药品检定研究院; |
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| 摘 要： | 目的:利用近红外光谱分析技术,建立中药蒲黄总灰分的快速、无损测定方法。方法:采用偏最小二乘回归方法(PLSR)对不同的光谱预处理方法、建模波段和因子数选择等进行比较,建立定量预测模型,并考察模型预测准确度。结果:以一阶导数结合多元散射校正法建立模型,校正模型的相关系数为0.9994,内部交叉验证均方根差(RMSECV)为0.293;交叉检验决定系数(RPD)为29.4,偏移小于0.013。结论:结果表明,总灰分为6.0%～27.3%的10批蒲黄样品的预测值与实测值的相对偏差均小于7.5%。该方法与常规总灰分测定方法比较快速、无损,预测结果准确、可靠,有望推广应用于中药蒲黄的快速检验。
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| 关 键 词： | 近红外光谱 蒲黄 定量预测 偏最小二乘回归方法 |
Research on the quantitative prediction of total ash of Pollen Typhae by NIRS |
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| LIU Wei,XIAO Xin-yue,WEI Feng,LIN Rui-chao.Research on the quantitative prediction of total ash of Pollen Typhae by NIRS[J].Chinese Journal of Pharmaceutical Analysis,2011(10). |
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| Authors: | LIU Wei XIAO Xin-yue WEI Feng LIN Rui-chao |
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| Institution: | LIU Wei,XIAO Xin-yue,WEI Feng,LIN Rui-chao(National Institute for Food and Drug Control,Beijing 100050,China) |
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| Abstract: | Objective:To use near infrared spectroscopy analytical technique for establishment a rapid and non-destructive method to determine the quantitative of Pollen Typhae.Methods:Partial least squares regression(PLRS) was used for building the quantitative prediction model of Pollen Typhae.Different calibration methods were compared with spectral pretreated methods,wave-number selection and factors of NIRS were discussed in detail.Results:The first derivative and multiplicative scatter correction method was used ... |
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| Keywords: | near infrared spectroscopy Pollen Typhae quantitatively prediction partial least squares regression |
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