红外技术2016，Vol.38Issue(12)：1053-1060,8.
基于siPLS的强化生物除磷污泥胞内糖原近红外分析
Near-infrared Spectroscopy Analysis of the Intracellular Glycogen Content During the Enhanced Biological Phosphorus Removal Process Based on siPLS
摘要
Abstract
In order to develop a procedure to determine the intracellular glycogen content in the sludge from the enhanced biological phosphorus removal (EBPR) process rapidly and accurately, four Near-infrared spectral pre-processing methods were separately used to improve the performance of multivariate calibrations. The quantitative analysis models between the near-infrared (NIR) spectra and the glycogen contents were established based on synergy interval partial least squares(siPLS)method. Results showed that the optimal model was established by four sub-intervals [10 13 16 19] with siPLS method after the NIR spectra were treated with Savitzky-Golay smoothing and first derivative as pre-processing method, and the preprocessed spectra were devided into 20 sub-intervals. The root mean square errors (RMSEP) and the correlation coefficients (rp) of the prediction sets were 0.0048 and 0.9105 respectively. The residual predictive deviation (RPD) values of cross-validation and prediction sets were all above 3.0. The NIR spectral model based on S-G smoothing and siPLS method can not only improve the predictive accuracy and reduce the variable numbers, but also realize the rapid and accurate determination of intracellular glycogen content in the sludge.关键词
强化生物除磷/糖原/近红外光谱/Savitzky-Golay平滑法/联合区间偏最小二乘Key words
enhanced biological phosphorus removal(EBPR)/glycogen/near infrared spectroscopy (NIR)/Savitzky-Golay smoothing(S-G)/interval partial least squares (siPLS)分类
化学化工引用本文复制引用
李卫华,徐玲,杨英,严国兵,赵庆,帅磊..基于siPLS的强化生物除磷污泥胞内糖原近红外分析[J].红外技术,2016,38(12):1053-1060,8.基金项目
国家自然科学基金（51378017）；安徽省教育厅科学研究重大项目（KJ2015ZD12）；安徽省高校省级自然科学研究项目（KJ2013A067）；省级质量工程教学研究重点项目（2015jyxm242）。 （）
