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Title of Journal: Eur Food Res Technol

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Abbravation: European Food Research and Technology

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Springer Berlin Heidelberg

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DOI

10.1016/0166-3615(93)90044-2

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ISSN

1438-2385

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Correcting NIR spectra of dimethyl fumarate in mil

Authors: Kaiyi Zheng Chunlan Xiang Peng Cao Jinpei Geng Yiping Du
Publish Date: 2013/07/06
Volume: 237, Issue: 5, Pages: 787-794
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Abstract

The calibration transfer was used to correct nearinfrared spectra NIR of dimethyl fumarate DMF for their variations resulting from differences of sample brand and measurement date Because the concentration of DMF in milk is very small an enrichment method called fluidized bed enrichment was used to concentrate the analyte before NIR measurement For correcting spectra between different brands and measurement dates the spectra of Bright dairy measured on 2/5/2011 were assigned as primary spectra And the spectra of Yili dairy measured on 2/5/2011 and Bright dairy measured on 17/5/2011 were set as secondary spectra for changes in brand and measurement date respectively Two spectral pretreatment methods were applied to preprocess spectra multiple scattering correction MSC and the combination of MSC and differentiation Savitzky–Golay differentiation After spectral pretreatment two calibration transfer methods including canonical correlation analysis CCA and piecewise direct standardization were used to correct the secondary spectra The results showed that although the variations in both brand and measurement date can cause secondary spectra to deviate from primary spectra the CCA under the combination of MSC and differentiation can correct the secondary spectra to use the model of primary spectra with high accuracy

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