| 近红外光谱-偏最小二乘法测定三元混合物中甲醇和乙醇的含量 |
| |
| 引用本文： | 逯家辉,蒋朝军,孟庆繁,高朝辉,韦韦,赵航,滕利荣.近红外光谱-偏最小二乘法测定三元混合物中甲醇和乙醇的含量[J].吉林大学学报(理学版),2005,43(3):368-371. |
| |
| 作者姓名： | 逯家辉 蒋朝军 孟庆繁 高朝辉 韦韦 赵航 滕利荣 |
| |
| 作者单位： | 吉林大学 生命科学学院生物药学系， 长春 130012 |
| |
| 基金项目： | 吉林省科技发展基金(批准号:20020503-2). |
| |
| 摘 要： | 应用偏最小二乘法建立了甲醇、 乙醇和水三元混合体系近红外光谱的校正模
型, 采用交互验证方式对模型精度进行检验. 通过选取波长， 使所建模型中甲醇测定相关
系数r达到0.999 91， 交互验证均方根误差(RMSECV)为0.431， 乙醇的r
达到0.999 98， RMSECV为0.193. 用所建模型测定样品， 与气相色谱法
分析结果相近， 相对误差小于3.505％.
|
| 关 键 词： | 近红外光谱 偏最小二乘法 甲醇 乙醇 |
| 文章编号： | 1671-5489(2005)03-0368-04 |
| 收稿时间： | 2004-08-30 |
| 修稿时间： | 2004年8月30日 |
Determination of Methanol and Ethanol in Ternary Mixture by Near Infrared Spectroscopy with PLS Regression |
| |
| LU Jia-hui,JIANG Chao-jun,MENG Qing-fan,GAO Chao-hui,WEI Wei,ZHAO Hang,TENG Li-rong.Determination of Methanol and Ethanol in Ternary Mixture by Near Infrared Spectroscopy with PLS Regression[J].Journal of Jilin University: Sci Ed,2005,43(3):368-371. |
| |
| Authors: | LU Jia-hui JIANG Chao-jun MENG Qing-fan GAO Chao-hui WEI Wei ZHAO Hang TENG Li-rong |
| |
| Institution: | Department of Biopharmacy， College of Life Science， Jilin University， Changchun 130012， China |
| |
| Abstract: | We have applied partial least squares (PLS) to establish a calibration model, the precision of which is verified by cross-validation. Via adopting optimum wavelength to calibrate, a satisfactory model has been established. In this model, the correlation coefficient in methanol determination is 0.999 91, the root mean square error of cross-validation (RMSECV) is 0.431 ; in ethanol determination, the correlation coefficient is up to 0.999 98, and the RMSECV is 0.193. Compared with that of gas chromatography, the relative error of the sample determination results is not more than 3.505%. |
| |
| Keywords: | near infrared spectrum partial least squares methanol ethanol |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《吉林大学学报(理学版)》浏览原始摘要信息 |
| 点击此处可从《吉林大学学报(理学版)》下载免费的PDF全文 |
