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Type: Artigo de periódico
Title: Study Of Scott Test Using Spectroscopic Techniques: An Alternative Method For Detecting Cocaine Hydrochloride And Its Addulterants In Street Drugs [estudo Do Teste De Scott Via Técnicas Espectroscópicas: Um Método Alternativo Para Diferenciar Cloridrato De Cocaína E Seus Adulterantes]
Author: Conceicao V.N.
Souza L.M.
Merlo B.B.
Filgueiras P.R.
Poppi R.J.
Romao W.
Abstract: Cocaine is usually seized mixed with a wide variety of adulterants such as benzocaine, lidocaine, caffeine, and procaine. The forensic identification of cocaine in these street drug mixtures is normally performed using colorimetric testing kits, but these tests may suffer from interferences, producing false-positive results. Here, we describe the use of analytical techniques including attenuated total reflection Fourier transform infrared (ATRFTIR) and ultraviolet-visible (UV-VIS) spectroscopies to distinguish between cocaine and other adulterants (lidocaine, promethazine, powdered milk and yeast) that yield positive results on the Scott test using the thiocyanate cobalt reagent. A further 13 substances were also analyzed using the Scott test.
Editor: Sociedade Brasileira de Quimica
Citation: Quimica Nova. Sociedade Brasileira De Quimica, v. 37, n. 9, p. 1538 - 1544, 2014.
Rights: aberto
Identifier DOI: 10.5935/0100-4042.20140240
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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