Determination of Dibutyl phthalate with THz time-domain spectroscopy

被引:0
|
作者
Zhao, Lijun [1 ]
Gao, Lei [1 ]
Jiang, Chen [1 ]
Yi, Lingxue [1 ]
Yu, Xianshu [1 ]
Zhao, Kun [1 ]
机构
[1] Beijing Key Laboratory of Optical Detection Technology for Oil and Gas, China University of Petroleum, Beijing
来源
Guangxue Xuebao/Acta Optica Sinica | 2015年 / 35卷
关键词
Absorption coeffcient; Dibutyl phthalate; Refractive index; Terahertz time-domain spectroscopy;
D O I
10.3788/AOS201535.s130001
中图分类号
学科分类号
摘要
This paper adopts terahertz time-domain spectroscopy to identify dibutyl phthalate(DBP), one kind of industrial plasticizer. Terahertz time-domain spectroscopy techniques are used to obtain time-domain spectroscopy(0.2~1.5 THz) of different DBP concentrations in ethyl alcohol and n-hexane at room temperature in nitrogen atmosphere. Optical parameters calculation results show that refractive index, absorption coefficient and other optical parameters in 0.2~1.5 THz band of DBP/n-hexane and DBP/Ethyl alcohol solutions correspond with concentrations. According to the absorption coefficient, refractive index and correlations between frequency-domain spectroscopy of area and concentration, it can be obtained content of DBP in any unknown solutions. The results could help to provide a new way and new method to identify phthalate acid esters (PAEs) in white spirit or other soft drinks. ©, 2015, Chinese Optical Society. All right reserved.
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页数:7
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