Quantitative of pesticide residue on the surface of navel orange by confocal microscopy Raman spectrometer

The potential of Confocal micro-Raman spectroscopy in the quantitative analysis of pesticide (Chlorpyrifos, Omethoate) residues on orange surface is investigated in this work. Quantitative analysis models were established by partial least squares (PLS) using different preprocessing methods (Smoothin...

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Bibliographic Details
Published inJournal of innovative optical health science Vol. 8; no. 2; pp. 1550001 - 1550001-6
Main Authors Liu, Yande, He, Bingbing
Format Journal Article
LanguageEnglish
Published World Scientific Publishing 01.03.2015
Subjects
Confocal Micro-Raman spectrometer
partial least squares
pesticide residue
partial least squares
pesticide residue
Confocal Micro-Raman spectrometer
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Summary:The potential of Confocal micro-Raman spectroscopy in the quantitative analysis of pesticide (Chlorpyrifos, Omethoate) residues on orange surface is investigated in this work. Quantitative analysis models were established by partial least squares (PLS) using different preprocessing methods (Smoothing, First derivative, MSC, Baseline) for pesticide residues. For pesticide residues, the higher correlation coefficients (r) is 0.972 and 0.943, the root mean square error of prediction (RMSEP) is 2.05% and 2.36%, respectively. It is therefore clear that Confocal micro-Raman spectroscopy techniques enable rapid, nondestructive and reliable measurements, so Raman spectrometry appears to be a promising tool for pesticide residues.
Bibliography:This is an Open Access article published by World Scientific Publishing Company. It is distributed under the terms of the Creative Commons Attribution 3.0 (CC-BY) License. Further distribution of this work is permitted, provided the original work is properly cited.
ISSN:1793-5458
1793-7205
DOI:10.1142/S1793545815500017