中国物理B ›› 2016, Vol. 25 ›› Issue (10): 107403-107403.doi: 10.1088/1674-1056/25/10/107403

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Quantitative analysis of ammonium salts in coking industrial liquid waste treatment process based on Raman spectroscopy

Ya-Nan Cao(曹亚南), Gui-Shi Wang(王贵师), Tu Tan(谈图), Ting-Dong Cai(蔡廷栋), Kun Liu(刘锟), Lei Wang(汪磊), Gong-Dong Zhu(朱公栋), Jiao-Xu Mei(梅教旭)   

  1. 1 Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;
    2 University of Science and Technology of China, Hefei 230031, China;
    3 College of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
  • 收稿日期:2016-05-04 修回日期:2016-05-26 出版日期:2016-10-05 发布日期:2016-10-05
  • 通讯作者: Gui-Shi Wang, Tu Tan E-mail:gswang@aiofm.ac.cn;tantu@aiofm.ac.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 41405022 and 61475068).

Quantitative analysis of ammonium salts in coking industrial liquid waste treatment process based on Raman spectroscopy

Ya-Nan Cao(曹亚南)1,2, Gui-Shi Wang(王贵师)1, Tu Tan(谈图)1, Ting-Dong Cai(蔡廷栋)3, Kun Liu(刘锟)1, Lei Wang(汪磊)1, Gong-Dong Zhu(朱公栋)1, Jiao-Xu Mei(梅教旭)1   

  1. 1 Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;
    2 University of Science and Technology of China, Hefei 230031, China;
    3 College of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
  • Received:2016-05-04 Revised:2016-05-26 Online:2016-10-05 Published:2016-10-05
  • Contact: Gui-Shi Wang, Tu Tan E-mail:gswang@aiofm.ac.cn;tantu@aiofm.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 41405022 and 61475068).

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摘要： Quantitative analysis of ammonium salts in the process of coking industrial liquid waste treatment is successfully performed based on a compact Raman spectrometer combined with partial least square (PLS) method. Two main components (NH4SCN and (NH4)2S2O3) of the industrial mixture are investigated. During the data preprocessing, wavelet denoising and an internal standard normalization method are employed to improve the predicting ability of PLS models. Moreover, the PLS models with different characteristic bands for each component are studied to choose a best resolution. The internal and external calibration results of the validated model show a mass percentage error below 1% for both components. Finally, the repeatabilities and reproducibilities of Raman and reference titration measurements are also discussed.

关键词: Raman spectroscopy, wavelet denoising, partial least square regression, ammonium salts

Abstract: Quantitative analysis of ammonium salts in the process of coking industrial liquid waste treatment is successfully performed based on a compact Raman spectrometer combined with partial least square (PLS) method. Two main components (NH4SCN and (NH4)2S2O3) of the industrial mixture are investigated. During the data preprocessing, wavelet denoising and an internal standard normalization method are employed to improve the predicting ability of PLS models. Moreover, the PLS models with different characteristic bands for each component are studied to choose a best resolution. The internal and external calibration results of the validated model show a mass percentage error below 1% for both components. Finally, the repeatabilities and reproducibilities of Raman and reference titration measurements are also discussed.

Key words: Raman spectroscopy, wavelet denoising, partial least square regression, ammonium salts

中图分类号:  (Raman and optical spectroscopy)

  • 74.25.nd