|
|||||
|
|
| 环境行业标准方法测定COD的PLS改进 | |
| 引用本文： | 黎国梁,粟晖,姚志湘,童张法.环境行业标准方法测定COD的PLS改进[J].环境科学与技术,2010,33(1). |
| 作者姓名： | 黎国梁 粟晖 姚志湘 童张法 |
| 作者单位： | 1. 广西工学院生物与化学工程系,广西,柳州,545006;广西大学化学化工学院,广西,南宁,530004 2. 广西工学院生物与化学工程系,广西,柳州,545006 3. 广西大学化学化工学院,广西,南宁,530004 |
| 基金项目： | 广西自然科学基金(桂科自0832064);;广西教育厅桂教科研项目资助(200708MS067) |
| 摘 要： | 文章采用偏最小二乘法改进校正模型,在测定COD值的高量程和低量程范围内分别建立PLS模型,预测结果与GB法测定COD值的相对误差为4.47%和4.09%,具有较好的一致性。研究解决了环境行业标准快速消解分光光度法测定水质化学需氧量中直线拟合回归不确定性的问题。 |
| 关 键 词： | 偏最小二乘法 环境行业标准 化学需氧量 校正模型改进 |
Improvement on COD Determination of Chinese Environmental Standard Based on PLS |
|
| LI Guo-liang,SU Hui,YAO Zhi-xiang,TONG Zhang-fa.Improvement on COD Determination of Chinese Environmental Standard Based on PLS[J].Environmental Science and Technology,2010,33(1). | |
| Authors: | LI Guo-liang SU Hui YAO Zhi-xiang TONG Zhang-fa |
| Institution: | 1.Department of Biological and Chemical Engineering;Guangxi University of Technology;Liuzhou 545006;China;2.School of Chemistry and Chemical Engineering;Guangxi University;Nanning 530004;China |
| Abstract: | The calibration model was improved by using partial least squares(PLS).PLS models were built for the high span and low span of COD determination respectively.The relative errors of predicted results were 4.47% and 4.09%,which were apparently in accordance with that of GB dichromate method.The uncertainly that resulted from linear fitting regression in fast digestion spectrophotometer method for detecting water quality of Chinese environmental standard was solved. |
| Keywords: | partial least squares (PLS) environmental standard chemical oxygen demand (COD) improvement on calibration model |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |