First trial with an all-fibre near infrared spectrometer evaluated by multivariate curve resolution

  • T. Ringsted
  • B. Robotham
  • J. D. Buron
  • K. M. Sørensen
  • T. Nikolajsen
  • S. B. Engelsen
Foss Analytical A/S, Foss Allé 1, 3400 Hillerød, Denmark
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Foss Analytical A/S, Foss Allé 1, 3400 Hillerød, Denmark
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Spectroscopy & Chemometrics, Department of Food Science, University of Copenhagen, Frederiksberg, Denmark
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Foss Analytical A/S, Foss Allé 1, 3400 Hillerød, Denmark
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Spectroscopy & Chemometrics, Department of Food Science, University of Copenhagen, Frederiksberg, Denmark
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 Corresponding Author
Spectroscopy & Chemometrics, Department of Food Science, University of Copenhagen, Frederiksberg, Denmark
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A novel all-fibre spectrometer with theoretical advantages for industrial process measurements was tested on simulated process samples of water with sucrose. The spectrometer uses the dispersive Fourier transform method and combines a supercontinuum laser with a time-wavelength separating optical fibre. Multivariate curve resolution was used to resolve the pure spectra and concentration profiles of sucrose and water from spectra of solutions with both constituents. The new spectrometer has great potential for rapid and vibration-robust measurements, but further studies are needed to determine its performance on more complex and real process samples.


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