Scatter correction of transmission near-infrared spectra by photon migration data: Quantitative analysis of solids
(2005) In Applied Spectroscopy 59(11). p.1381-1387- Abstract
- The scope of this work is a new methodology to correct conventional near-infrared (NIR) data for scattering effects. The technique aims at measuring the absorption coefficient of the samples rather than the total attenuation measured in conventional NIR spectroscopy. The main advantage of this is that the absorption coefficient is independent of the path length of the light inside the sample and therefore independent of the scattering effects. The method is based on time-resolved spectroscopy and modeling of light transport by diffusion theory. This provides an independent measure of the scattering properties of the samples and therefore of the path length of light. This yields a clear advantage over other preprocessing techniques, where... (More)
- The scope of this work is a new methodology to correct conventional near-infrared (NIR) data for scattering effects. The technique aims at measuring the absorption coefficient of the samples rather than the total attenuation measured in conventional NIR spectroscopy. The main advantage of this is that the absorption coefficient is independent of the path length of the light inside the sample and therefore independent of the scattering effects. The method is based on time-resolved spectroscopy and modeling of light transport by diffusion theory. This provides an independent measure of the scattering properties of the samples and therefore of the path length of light. This yields a clear advantage over other preprocessing techniques, where scattering effects are estimated and corrected for by using the shape of the measured spectrum only. Partial least squares (PLS) calibration models show that, by using the proposed evaluation scheme, the predictive ability is improved by 50% as compared to a model based on conventional NIR data alone. The method also makes it possible to predict the concentration of active substance in samples with other physical properties than the samples included in the calibration model. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/212348
- author
- Abrahamsson, Christoffer LU ; Lowgren, A ; Stromdahl, B ; Svensson, Tomas LU ; Andersson-Engels, Stefan LU ; Johansson, Jonas LU and Folestad, S
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- scatter correction, near-infrared spectroscopy, time-resolved, spectroscopy, diffusion, photon migration, NIR spectroscopy, PLS, partial least squares
- in
- Applied Spectroscopy
- volume
- 59
- issue
- 11
- pages
- 1381 - 1387
- publisher
- Society for Applied Spectroscopy
- external identifiers
-
- pmid:16316516
- wos:000233441200012
- scopus:28444461536
- ISSN
- 1943-3530
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Atomic physics (011013005), Physics, Faculty of Technology (011013200)
- id
- 441d5cc1-1d67-431f-be58-38bde59ac6a0 (old id 212348)
- alternative location
- http://as.osa.org/abstract.cfm?id=117143
- date added to LUP
- 2016-04-01 12:24:57
- date last changed
- 2022-03-05 23:16:39
@article{441d5cc1-1d67-431f-be58-38bde59ac6a0,
abstract = {{The scope of this work is a new methodology to correct conventional near-infrared (NIR) data for scattering effects. The technique aims at measuring the absorption coefficient of the samples rather than the total attenuation measured in conventional NIR spectroscopy. The main advantage of this is that the absorption coefficient is independent of the path length of the light inside the sample and therefore independent of the scattering effects. The method is based on time-resolved spectroscopy and modeling of light transport by diffusion theory. This provides an independent measure of the scattering properties of the samples and therefore of the path length of light. This yields a clear advantage over other preprocessing techniques, where scattering effects are estimated and corrected for by using the shape of the measured spectrum only. Partial least squares (PLS) calibration models show that, by using the proposed evaluation scheme, the predictive ability is improved by 50% as compared to a model based on conventional NIR data alone. The method also makes it possible to predict the concentration of active substance in samples with other physical properties than the samples included in the calibration model.}},
author = {{Abrahamsson, Christoffer and Lowgren, A and Stromdahl, B and Svensson, Tomas and Andersson-Engels, Stefan and Johansson, Jonas and Folestad, S}},
issn = {{1943-3530}},
keywords = {{scatter correction; near-infrared spectroscopy; time-resolved; spectroscopy; diffusion; photon migration; NIR spectroscopy; PLS; partial least squares}},
language = {{eng}},
number = {{11}},
pages = {{1381--1387}},
publisher = {{Society for Applied Spectroscopy}},
series = {{Applied Spectroscopy}},
title = {{Scatter correction of transmission near-infrared spectra by photon migration data: Quantitative analysis of solids}},
url = {{https://lup.lub.lu.se/search/files/2913996/2368823.pdf}},
volume = {{59}},
year = {{2005}},
}