Journal of Shanghai University(Natural Science Edition) ›› 2021, Vol. 27 ›› Issue (2): 227-235.doi: 10.12066/j.issn.1007-2861.2290

• Impact of River Impounding on Material Cycling and Its Ecological Significance in Southwest China • Previous Articles     Next Articles

Rapid determination of TOC, TN and BSi content in reservoir sediments based FTIR

MEI Lin, FAN Xinyi, YUE Yihong, LIU Liu, CHU Yongsheng, WANG Fushun()   

  1. School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
  • Received:2021-03-10 Online:2021-04-30 Published:2021-04-27
  • Contact: WANG Fushun E-mail:fswang@shu.edu.cn

Abstract:

Fourier transform infrared spectroscopy (FTIR) was used to analyse sediments from Yantan (YT) Reservoir in Southwest China, and a rapid analysis method for sediment total organic carbon (TOC), total nitrogen (TN) and biogenic silica (BSi) content based on FTIR was investigated. The FTIR prediction models of TOC/TN/BSi contents were established by partial least squares regression (PLSR) method, respectively. The prediction accuracy of this model was verified based on the measured data. This method can effectively extract geochemical information from reservoir sediments and can be applied to the study of high-resolution paleoenvironmental changes. The method requires small sample size and simple pretreatment process to rapidly and economically determine the content of various sediments components, which is of great advantage in determining a large number of sediment samples.

Key words: Fourier transform infrared spectroscopy (FTIR), total organic carbon (TOC), total nitrogen (TN), biogenic silica (BSi), reservoir sediment

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