A multivariate calibration procedure for UV/VIS spectrometric quantification of organic matter and nitrate in wastewater.

@article{Langergraber2003AMC,
  title={A multivariate calibration procedure for UV/VIS spectrometric quantification of organic matter and nitrate in wastewater.},
  author={Guenter Langergraber and Nikolaus Fleischmann and Franz Hofst{\"a}dter},
  journal={Water science and technology : a journal of the International Association on Water Pollution Research},
  year={2003},
  volume={47 2},
  pages={63-71}
}
A submersible UV/VIS spectrometer for in-situ real-time measurements is presented. It utilises the UV/VIS range (200-750 nm) for simultaneous measurement of COD, filtered COD, TSS and nitrate with just a single instrument. A global calibration is provided that is valid for typical municipal wastewater compositions. Usually high correlation coefficients can be achieved using this standard setting. By running a local calibration improvements concerning trueness, precision and long term stability… CONTINUE READING
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