2017
DOI: 10.1039/c7ay00391a
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Calibration transfer of flour NIR spectra between benchtop and portable instruments

Abstract: This work reports on the use of different strategies of calibration transfer to determine crude protein and fiber properties in samples of flours analyzed with benchtop (primary) and portable (secondary) NIR instruments.

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Cited by 15 publications
(2 citation statements)
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“…One of the most used strategies to calibrate portable spectrometers is to transfer the dataset directly from a benchtop spectrometer through various standardization techniques. 3 In the present trial, it was not possible to transfer directly a laboratory calibration because the scanning monochromator works in a different spectral range, so the Infratec 1241 was used only to provide reference values. Spectra of wheat samples were acquired with the process and the handheld instrument placed side by side, but using different scanning set up.…”
Section: Resultsmentioning
confidence: 98%
“…One of the most used strategies to calibrate portable spectrometers is to transfer the dataset directly from a benchtop spectrometer through various standardization techniques. 3 In the present trial, it was not possible to transfer directly a laboratory calibration because the scanning monochromator works in a different spectral range, so the Infratec 1241 was used only to provide reference values. Spectra of wheat samples were acquired with the process and the handheld instrument placed side by side, but using different scanning set up.…”
Section: Resultsmentioning
confidence: 98%
“…Researchers have conducted a lot of research and summary on model transfer methods, including the direct standardization method (DS) [ 4 , 5 ], piecewise direct standardization method (PDS) [ 6 , 7 ] and machine learning-based method [ 8 , 9 , 10 ]. In recent years, the direct standardization and piecewise direct standardization method have been widely used in many fields [ 11 , 12 , 13 , 14 ]. Alves applied the piecewise direct standardization method to overcome matrix effects in front face fluorescence spectroscopy of a mixture when different excipients of acetylsalicylic acid, paracetamol and caffeine were used [ 15 ].…”
Section: Introductionmentioning
confidence: 99%