Voltammetric determination of Δ 9-THC in glassy carbon electrode: an important contribution to forensic electroanalysis

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorBalbino, Marco Antonio-
Autor(es): dc.creatorTeles de Menezes, Matheus Manoel-
Autor(es): dc.creatorEleoterio, Izabel Cristina-
Autor(es): dc.creatorSaczk, Adelir Aparecida-
Autor(es): dc.creatorOkumura, Leonardo Luiz-
Autor(es): dc.creatorTristao, Heloisa Maria-
Autor(es): dc.creatorOliveira, Marcelo Firmino-
Data de aceite: dc.date.accessioned2026-02-09T12:55:27Z-
Data de disponibilização: dc.date.available2026-02-09T12:55:27Z-
Data de envio: dc.date.issued2016-06-14-
Data de envio: dc.date.issued2016-06-14-
Data de envio: dc.date.issued2016-06-14-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/11256-
Fonte completa do material: dc.identifierhttp://www.sciencedirect.com/science/article/pii/S0379073812001442-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1170996-
Descrição: dc.descriptionA new voltammetric method for the determination of Delta(9)-tetrahydrocannabinol (Delta(9)-THC) is described. The voltammetric experiments were accomplished in N-N dimethylformamide/water (9: 1, v/v), using tetrabutylammonium tetrafluoroborate (TBATFB) 0.1 mol/L as supporting electrolyte and a glassy carbon disk electrode as the working electrode. The anodic peak current was observed at 0.0 V (vs. Ag/AgCl) after a 30 s pre-concentration step under an applied potential of -1.2 V (vs. Ag/AgCl). A linear dependence of Delta(9)-THC detection was obtained in the concentration range 2.4-11.3 ng/mL, with a linear correlation coefficient of 0.999 and a detection limit of 0.34 ng/mL. The voltammetric method was used to measure the content of Delta(9)-THC in samples (hemp and hashish) confiscated by the police. The elimination of chemical interferences from the samples was promptly achieved through prior purification using the TLC technique, by employing methanol/water (4: 1, v/v) as the mobile phase. The results showed excellent correlation with results attained by HPLC.-
Idioma: dc.languagept_BR-
Publicador: dc.publisherElsevier Science-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceForensic Science International-
Palavras-chave: dc.subjectTetrahydrocannabinol-
Palavras-chave: dc.subjectForensic electroanalysis-
Palavras-chave: dc.subjectVoltammetry-
Palavras-chave: dc.subjectCriminalistics-
Palavras-chave: dc.subjectHemp-
Palavras-chave: dc.subjectHashish-
Título: dc.titleVoltammetric determination of Δ 9-THC in glassy carbon electrode: an important contribution to forensic electroanalysis-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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