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161.
The possibility of simultaneous synthesis of alpha-phenylethylamine and amphetamine from mixture of acetophenone and benzylmethylketone was studied. The structures of specific impurities were predicted and these compounds were synthesized and finally found in reaction mixtures, as well as in the final product. The data collected by gas chromatography, proton and carbon magnetic resonance, Fourier transform infrared spectrometry and mass spectrometry are presented. 相似文献
162.
Identification of Different Forms of Cocaine and Substances Used in Adulteration Using Near‐infrared Raman Spectroscopy and Infrared Absorption Spectroscopy 下载免费PDF全文
Ciro A. F. O. Penido M.Sc. Marcos Tadeu T. Pacheco Ph.D. Renato A. Zângaro Ph.D. Landulfo Silveira Ph.D. Jr. 《Journal of forensic sciences》2015,60(1):171-178
Identification of cocaine and subsequent quantification immediately after seizure are problems for the police in developing countries such as Brazil. This work proposes a comparison between the Raman and FT‐IR techniques as methods to identify cocaine, the adulterants used to increase volume, and possible degradation products in samples seized by the police. Near‐infrared Raman spectra (785 nm excitation, 10 sec exposure time) and FT‐IR‐ATR spectra were obtained from different samples of street cocaine and some substances commonly used as adulterants. Freebase powder, hydrochloride powder, and crack rock can be distinguished by both Raman and FT‐IR spectroscopies, revealing differences in their chemical structure. Most of the samples showed characteristic peaks of degradation products such as benzoylecgonine and benzoic acid, and some presented evidence of adulteration with aluminum sulfate and sodium carbonate. Raman spectroscopy is better than FT‐IR for identifying benzoic acid and inorganic adulterants in cocaine. 相似文献
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Review Symposium: Interdisciplinary Readings of Ari Bryen's Violence in Roman Egypt—Author's Reflections 下载免费PDF全文
Ari Z. Bryen 《Law & social inquiry》2015,40(3):807-810
Bryen, Ari Z. 2013 . Violence in Roman Egypt: A Study in Legal Interpretation . Philadelphia, PA: University of Pennsylvania Press. Pp. 376. $75.00 cloth; $75.00 eBook. In this brief comment, I respond to symposium reviewers of my book Violence in Roman Egypt (2013). I consider the insights each provides from their respective discipline, and identify connections across those disciplines as well. More broadly, I comment on the theoretical purchase and unique challenges of law and society scholarship. 相似文献
166.
Tamara Z. Hollins 《Women's Studies: An inter-disciplinary journal》2013,42(6):771-773
Women Playwrights in England, Ireland, and Scotland, 1660–1823. David D. Mann and Susan Garland Mann with Camille Gamier. Bloomington &; Indianapolis: Indiana UP, 1996. 432 pp. $57.50 cl. 相似文献
167.
X H Xu H P Philipsen N G Jablonski B Weatherhead K M Pang J Z Zhu 《Forensic science international》1991,51(2):281-288
A total of 317 upper and lower third molars were randomly divided into working and control samples and used to estimate chronological age employing a method which combined multiple regression analysis of data from Gustafson's and Maples's scoring system, direct morphological measurements obtained with a Kontron image analysis system and logarithmic data transformation. The standard errors of estimate were 2.4-6.8 years in the working sample and 1.9-7.5 years when the derived formulae were tested on the control sample, respectively. Compared to previous studies, this method provides a smaller standard error of estimate from a single molar tooth. The method is presently being tested on other tooth categories, like premolars, canines and other types of molars. 相似文献
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