衣玲学,高磊,张平

• 1:中国石油大学(北京)油气光学探测技术北京市重点实验室

摘要(Abstract)：

塑化剂极易转移到大气、土壤、水体和食品中,对环境和人体造成极大的伤害。邻苯二甲酸二丁酯(DBP)是一种常见的塑化剂,本文以DBP为实验对象,利用太赫兹时域光谱技术(THz-TDS)在室温环境下对麻油及其与DBP的混合物进行检测,得到其在0.3~2.25THz波段的折射率和吸收光谱。利用偏最小二乘回归(PLSR)的方法对不同浓度的混合物的吸收光谱进行建模分析,结果表明麻油中DBP含量与太赫兹波段吸收光谱具有很高的相关性,相关系数R为0.9893,校正最大均方根误差(RMSEC)为0.46%,预测最大均方根误差(RESEP)为1.18%,证明了利用太赫兹时域光谱技术结合PLSR方法能够精确分析麻油中塑化剂含量。

关键词(KeyWords)： 太赫兹时域光谱技术;邻苯二甲酸二丁酯;食品安全;偏最小二乘回归;定量检测

Abstract:

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基金项目(Foundation):

作者(Author): 衣玲学,高磊,张平

参考文献(References)：

• [1]Cai Y Q,Jiang G B,Liu J F,et al.Multi-walled carbon nanotubes packed cartridge for the solid-phase extraction of several phthalate esters from water samples and their determination by high performance liquid chromatography.Anal.Chim Acta 2003,494,149-156.
• [2]Zhao R S,Wang X,Yuan J P,et al.Using bamboo charcoal as solid-phase extraction adsorbent for the ultratracelevel determination of perfluorooctanoic acid in water samples by high-performance liquid chromatography-mass spectrometry.J.Chromatogr.A 2008,1183,15-20.
• [3]Christodoulou D L,Kanari P,Constantinou P H P.Pesticide residues analysis in wine by liquid chromatography-tandem mass spectrometry and using ethyl acetate extraction method:Validation and pilot survey in real samples[J].Journal of Wine Research,2015,26:81-98.
• [4]Pirogov A V,Tolmacheva N G,Shpigun O A.Extraction and subsequent determination of dialkyl phthalates in the soil using gas chromatography combined with tandem mass spectrometry[J].Moscow University Chemistry Bulletin,2014,69(4):158-162.
• [5]Moreira M A,AndréL C,Cardeal Z D L.Analysis of plasticiser migration to meat roasted in plastic bags by SPME-GC/MS[J].Food Chemistry,2015,178:195-200.
• [6]张振伟,左剑,张存林.甲硝唑、替硝唑和奥硝唑药品的远红外与太赫兹吸收光谱研究[J].光谱学与光谱分析,2012,32(4):906-909.Zhang Z W,Zuo J,Zhang C L.Far-IR and THz Absorption spectra studies of Metronidazole,Tinidazole and Ornidazole[J].Spectroscopy and Spectral Analysis,2012,32(4):906-909.(in Chinese)
• [7]和挺,沈京玲.太赫兹光谱技术在毒品检测中的应用研究[J].光谱学与光谱分析.2013,33(9):2348-2353.He T,Shen J L.Applications of Terahertz spectroscopy in illicit drugs detection[J].Spectroscopy and Spectral Analysis,2013,33(9):2348-2353.(in Chinese)
• [8]Liang Chengshen,Zhao Guozhong.Terahertz spectroscopic inspection and analysis of Xylitol and D-Xylose[J].Spectroscopy and Spectral Analysis,2011,31(2):323-327.
• [9]李建蕊,李九生.植物油的太赫兹时域谱分析[J].中国粮油学报,2010,25:112-114.Li J,Li G S.Research on plant oil by using terahertz timedomain spectroscopy[J].Journal of the Chinese Cereals&Oils Association,2010.(in Chinese)
• [10]Qin J,Xie L,Ying Y.Determination of tetracycline hydrochloride by terahertz spectroscopy with PLSR model[J].Food Chemistry,2015,170:415-422.
• [11]Zhang X,Xu J.Introduction to THz wave photonics[M].New York:Springer Verlag,2009.