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Marcelo Firmino de Oliveira

3 papers in the library · 30 citations · publishing 2017-2026

Papers

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A Dried Spot Liquid Chromatography Method to Measure 3,4-Methylenedioxymethamphetamine and 3,4-Methylenedioxyamphetamine in Oral Fluid

Forensic Sciences January 26, 2026 Leandro Oka-Duarte, Bruno Ferreira, Marcelo Firmino de Oliveira

Background/Objectives: MDMA and MDA are among the stimulant drugs most frequently encountered in forensic casework, and oral fluid represents a practical biological matrix for their detection. However, liquid oral fluid requires refrigeration, is susceptible to degradation, and can be logistically demanding for routine laboratories. Dried Oral Fluid Spots (DOFS) offer a low-cost and stable...

Development of a Pencil Drawn Paper‐based Analytical Device to Detect Lysergic Acid Diethylamide (LSD)*†

Journal of Forensic Sciences June 30, 2020 Maria Fernanda Muzetti Ribeiro, Fátima Bento, Antônio José Ipólito et al. 22 citations

Abstract The need for agile and proper identification of drugs of abuse has encouraged the scientific community to improve and to develop new methodologies. The drug lysergic acid diethylamide (LSD) is still widely used due to its hallucinogenic effects. The use of voltammetric methods to analyze narcotics has increased in recent years, and the possibility of miniaturizing the electrochemical...

Simple and Fast Analysis of LSD by Cyclic Voltammetry in Aqueous Medium

ECS Transactions October 25, 2017 Maria Fernanda Muzetti Ribeiro, Érica Naomi Oiye, Juliana Midori Toya Katayama et al. 8 citations

The application of electrochemical analysis within the forensic scenario has been widely explored, mainly in the context of the analysis of illicit drugs. In this regard, voltammetric measurements are particularly sensitive and specific. Psychedelic LSD (lysergic acid diethylamide) appears in seized blotters, and its apprehension is constant on a global scale. In this study, we have developed a...