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基于拉曼光譜的PE膜包裝食用農(nóng)產(chǎn)品品質(zhì)檢測誤差的校正方法.pdf

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基于拉曼光譜的PE膜包裝食用農(nóng)產(chǎn)品品質(zhì)檢測誤差的校正方法.pdf

<p>38 &nbsp;， &nbsp;9 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Vol.38 ，No.9 ，pp2800-2805 2 0 1 8 &nbsp;9 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; SpectroscopyandSpectralAnalysis September ，2018 &nbsp; &nbsp; &nbsp; &nbsp; PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp;* ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; 100083 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;、 &nbsp; 、 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; 、 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp;Savitzky-Golay（SG）5 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; （16 &nbsp;） &nbsp;PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;（1 158 &nbsp;1 528cm 1 ） &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1 158 &nbsp;1 528cm 1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;81.4 &nbsp;103.1 ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;7.98 &nbsp;8.56 ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;0.95 &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;0.94。 &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;、 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1 158 &nbsp;1 528cm 1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 7.9 8.6 &nbsp;8.1 8.6 ； &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp;； &nbsp; &nbsp;；PE &nbsp; &nbsp;； &nbsp; &nbsp; ； &nbsp; ； &nbsp; &nbsp; &nbsp; &nbsp;：S2 &nbsp; &nbsp; &nbsp; ：A &nbsp; DOI ：10.3964j.issn.1000-0593（2018）09-2800-06 &nbsp; &nbsp;：2017-04-23 ， &nbsp; &nbsp; ：2017-09-19 &nbsp; &nbsp;： &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; （2016YFD0400905） &nbsp; &nbsp; &nbsp; ： &nbsp; ，1992 &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;e-mail ：799504307 qq.com * &nbsp; &nbsp; &nbsp; e-mail ：ypeng cau.edu.cn &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 、 &nbsp; 、 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp;， &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp;PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp;（chlorophyll ，Chl） &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1 。 &nbsp; &nbsp; &nbsp; &nbsp; （ &nbsp; ） &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;2 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 3 ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 4 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;5 ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp;、 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 6 。 &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; 、 &nbsp; 、 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;、 &nbsp; &nbsp; 7 ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp;、 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;（PE）、 &nbsp; &nbsp; （PVC） &nbsp; &nbsp; &nbsp; &nbsp;（PVDC） &nbsp; &nbsp;8 ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; PE &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;（PE）、 &nbsp; &nbsp; （PVC）、 &nbsp; &nbsp; &nbsp; （PVDC） &nbsp; &nbsp; &nbsp; （PMP） &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;9 。 &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。AnupamKMisra &nbsp;10 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; 、 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;； &nbsp; &nbsp; 11 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 、 &nbsp; &nbsp; 、 &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp;、 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp;PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 1 &nbsp; &nbsp; 1.1 &nbsp; &nbsp; &nbsp; &nbsp;40 &nbsp; &nbsp;、 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;（ &nbsp; &nbsp;） ， &nbsp; 10 &nbsp; &nbsp; &nbsp; （ &nbsp; &nbsp; ）、10 &nbsp; &nbsp; &nbsp; （ &nbsp; ） &nbsp;10 &nbsp; &nbsp; &nbsp; （ &nbsp; &nbsp; &nbsp;）。 &nbsp; &nbsp; &nbsp; &nbsp;PE &nbsp; &nbsp;（ &nbsp; &nbsp; 90 ， &nbsp; 5 ） ， &nbsp; &nbsp; &nbsp;PE &nbsp; &nbsp;（1 &nbsp;）、 &nbsp; PE &nbsp; &nbsp;（2 &nbsp;） &nbsp; &nbsp;PE &nbsp; &nbsp;（3 &nbsp;）。 &nbsp; &nbsp;、 &nbsp; &nbsp;、 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp;。 1.2 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;（10785MM0350MS ，Innovative Photonic Solutions ，Mon- mouthJunction ，N.J.）、 &nbsp; &nbsp; &nbsp;（RamanExplorer 785 ， HeadwallPhotonics ，F(xiàn)itchburg ，Mass）、 &nbsp; &nbsp; &nbsp; &nbsp;（CCD） &nbsp; （AndorNewtonDU920PBR-DD ，AndorTechnol- ogy ，Inc ，SouthWindsor ，Conn.）、 &nbsp; 、 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 02 400cm 1 。 1.3 &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 7.5mm 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;9 &nbsp; ， &nbsp; &nbsp; 9 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1 &nbsp;、2 &nbsp;、3 &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp;3 &nbsp;PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; 、 &nbsp; 、 &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;3 &nbsp;， &nbsp; &nbsp; &nbsp; 1 &nbsp;、2 &nbsp;、3 &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp;9 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; ： &nbsp; &nbsp; &nbsp;785nm ， &nbsp; &nbsp; 450mW ， &nbsp; &nbsp; &nbsp; 7s。 1.4 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; 、 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp;Savitzky-Golay （SG）5 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; Savitzky &nbsp;Golay &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;、 &nbsp; &nbsp; 12 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; （airPLS） &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 13 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; （cor- relationcoefficient ， &nbsp;c）、 &nbsp; &nbsp; &nbsp; &nbsp; （predictioncoef- ficient ， &nbsp;p） &nbsp; &nbsp; &nbsp;。 2 &nbsp; &nbsp; &nbsp;2.1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; 1 158 &nbsp;1 528cm 1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1 158 &nbsp;1 528cm 1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;C O C &nbsp;C C &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; a &nbsp;b &nbsp; &nbsp; &nbsp;14 。 &nbsp; ，1 158 &nbsp;1 528cm 1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 2.2 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;02 400 cm 1 ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1 158 &nbsp;1 528cm 1 &nbsp;。 &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;（1 158 &nbsp;1 528cm 1 ） &nbsp; ， &nbsp; 1 0 8 2 &nbsp;9 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp;7s &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp;1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp;1 &nbsp; &nbsp; &nbsp; &nbsp;、 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;7 ，6 ，5 ，4 ，3 ，2 ，1s &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Fig.1 TheRamanspectrogramofcucumberswithdifferent integraltimeandwithoutbeingpackaged Andinthephoto ，thereareRamanspectrogramsofcucumberwithin- tegraltimeof 1 ，2 ，3 ，4 ，5 ，6and 7sfromtoptobottom 7s &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; ， &nbsp; &nbsp; 7 &nbsp; &nbsp; &nbsp;， &nbsp;1 158cm 1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;6 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp;2 &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;8 &nbsp;、7 &nbsp;、6 &nbsp;、5 &nbsp;、4 &nbsp;、3 &nbsp;、2 &nbsp;、1 &nbsp; &nbsp; &nbsp;PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 2.3 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp;PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; 1 200 &nbsp;150、 &nbsp; &nbsp;0.1mm &nbsp;1 &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1 200 &nbsp;1 &nbsp;、2 &nbsp;、 3 &nbsp;PE &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp;3 &nbsp;1 &nbsp;PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;。 &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; PE &nbsp; &nbsp; 905 ，1 061 ，1 128 ，1 301 &nbsp;1 438cm 1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; （ &nbsp;e &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;，e &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; ）。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， 1 &nbsp;、2 &nbsp;、3 &nbsp;PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1 &nbsp;PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; 1 &nbsp;1 &nbsp;PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; 2 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;PE &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1158 &nbsp;1528cm 1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 8 &nbsp;、7 &nbsp;、6 &nbsp;、5 &nbsp;、4 &nbsp;、3 &nbsp;、2 &nbsp;、1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ：8 &nbsp;； &nbsp;：7 &nbsp;； &nbsp;：6 &nbsp;； &nbsp;：5 &nbsp;； &nbsp;：4 &nbsp;； &nbsp;：3 &nbsp;； &nbsp;：2 &nbsp;； &nbsp;：1 &nbsp;； &nbsp;： &nbsp; &nbsp; Fig.2 Theinfluenceof8 ，7 ，6 ，5 ，4 ，3 ，2 ，1andnolayersof PEclingfilmtoChlorophyllRamanspectrumcharac- teristicpeaksofcucumberspackagedin1158and1528 cm 1 fromtoptobottom &nbsp;：8layersofclingfilm ； &nbsp;：7layersofclingfilm ； &nbsp;：6layersofcling film ； &nbsp;：5layersofclingfilm ； &nbsp;：4layersofclingfilm ； &nbsp;：3layersof clingfilm ； &nbsp;：2layersofclingfilm ； &nbsp;：1layerofclingfilm ； &nbsp;：nocling film &nbsp;3 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ：1 &nbsp;1 &nbsp;PE &nbsp; &nbsp;； &nbsp;：150 &nbsp;1 &nbsp;PE &nbsp; &nbsp;； &nbsp;：1 200 &nbsp;1 &nbsp;PE &nbsp; &nbsp;； &nbsp;：1 200 &nbsp;2 &nbsp;PE &nbsp; &nbsp;； &nbsp;：1 200 &nbsp;3 &nbsp;PE &nbsp; &nbsp;Fig.3 ThecontrastfiguresofRamanspectrumtestingresults &nbsp;：alayerofNo.1PEplasticwrap ； &nbsp;：150layersofNo.1PEplastic wrap ； &nbsp;：1 300layersof No.1 PE plasticwrap ； &nbsp;：1 200layersof No.2PEplasticwrap ； &nbsp;：1 200layersofNo.3PEplasticwrap &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 。 2.4 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;， &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</p>

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