Institute of Microwaves and Photonics, School of Electronic and Electrical Engineering, University of Leeds, Leeds, UK LS2 9JT.
Analyst. 2009 Aug;134(8):1658-68. doi: 10.1039/b817839a. Epub 2009 May 22.
Terahertz frequency time-domain spectroscopy has been used to analyse a wide range of samples containing cocaine hydrochloride, heroin and ecstasy--common drugs-of-abuse. We investigated real-world samples seized by law enforcement agencies, together with pure drugs-of-abuse, and pure drugs-of-abuse systematically adulterated in the laboratory to emulate real-world samples. In order to investigate the feasibility of automatic spectral recognition of such illicit materials by terahertz spectroscopy, principal component analysis was employed to cluster spectra of similar compounds.
太赫兹时域光谱已被用于分析包含盐酸可卡因、海洛因和摇头丸等常见滥用药物的各种样本。我们研究了执法机构缴获的真实样本，以及纯滥用药物和在实验室中系统掺假以模拟真实样本的纯滥用药物。为了研究太赫兹光谱自动识别此类非法材料的可行性，采用主成分分析对相似化合物的光谱进行聚类。
