摘要
为使实际毒品鉴别工作更为准确、可靠,运用太赫兹时域光谱技术(THz-TDS)获得了冰毒(MA)与面粉及二者不同比例混合物的太赫兹(THz)光谱.根据混合物及面粉的实验结果,采用Bruggeman有效介质理论成功计算出目标成分MA的介电函数,进而获得了MA的吸收谱.计算所得吸收谱与实验所测纯MA吸收谱相符,证实了Bruggeman有效介质理论在掺和面粉的毒品THz光谱鉴别中的实用性.
In order to extract absorption spectra of pure illicit drugs from mixed ones,making drug identification more accurate and reliable,Bruggeman effective media theory is successfully applied to methamphetamine（MA） added with flour by different proportions.On the basis of the experimental measurement of THz absorption spectra for adulterating flour MA and pure flour,we have extracted the dielectric function of pure MA in THz band by the Bruggeman effective media theory.Accordingly we get the THz absorption spectrum of pure MA.The calculation results agree well with the experimental ones.Therefore we have confirmed the practicability of Bruggeman effective media theory in identification of illicit drugs.
出处
《山东理工大学学报（自然科学版）》
CAS
2011年第3期56-59,共4页
Journal of Shandong University of Technology:Natural Science Edition
基金
山西大同大学青年科学基金资助项目(2010Q7)
