Search Results - "Leal Cunha, Ricardo"

Analytical quantification, intoxication case series, and pharmacological mechanism of action for N‐ethylnorpentylone (N‐ethylpentylone or ephylone) by Costa, Jose Luiz, Cunha, Kelly Francisco, Lanaro, Rafael, Cunha, Ricardo Leal, Walther, Donna, Baumann, Michael H.

“…Synthetic cathinones continue to proliferate in clandestine drug markets worldwide. N‐ethylnorpentylone (also known as N‐ethylpentylone or ephylone) is a…”
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An overview of New Psychoactive Substances (NPS) in northeast Brazil: NMR-based identification and analysis of ecstasy tablets by GC-MS by Cunha, Ricardo Leal, Oliveira, Celinalva da Silva Lima, de Oliveira, Aline Lima, Maldaner, Adriano Otávio, do Desterro Cunha, Silvio, Pereira, Pedro Afonso P.

“…The actual illicit market for synthetic drugs is characterized by a wide variety of psychoactive substances of different chemical and pharmacological classes,…”
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Fast determination of amphetamine-type stimulants and synthetic cathinones in whole blood samples using protein precipitation and LC-MS/MS by Leal Cunha, Ricardo, da Silva Lima Oliveira, Celinalva, Lima de Oliveira, Aline, Maldaner, Adriano Otávio, P. Pereira, Pedro Afonso

“…•This work was focused on 11 psychoactive substances, namely amphetamine-type stimulants and synthetic cathinones.•A method based on PPT-LC-MS/MS was developed…”
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Determination of free (unconjugated) amphetamine-type stimulants in urine samples by dispersive liquid–liquid microextraction and gas chromatography coupled to mass spectrometry (DLLME-GC-MS) by Cunha, Ricardo Leal, Lopes, Wilson Araujo, Pereira, Pedro Afonso P.

“…The consumption of drugs of abuse is a growing practice in the modern world. Synthetic drugs and amphetamine derivatives in particular occupy a prominent…”
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Correction to: Analysis of human biological samples using porous graphitic carbon columns and liquid chromatography‑mass spectrometry: a review by Rodrigues, Taís Betoni, Cunha, Ricardo Leal, Barci, Paulo Emílio Pereira, Santos‑Neto, Álvaro José, Lanças, Fernando Mauro

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Analysis of human biological samples using porous graphitic carbon columns and liquid chromatography-mass spectrometry: a review by Rodrigues, Taís Betoni, Cunha, Ricardo Leal, Barci, Paulo Emílio Pereira, Santos-Neto, Álvaro José, Lanças, Fernando Mauro

“…Liquid chromatography-mass spectrometry (LC–MS) has emerged as a powerful analytical technique for analyzing complex biological samples. Among various…”
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A green method for the determination of illicit drugs in wastewater and surface waters-based on a semi-automated liquid-liquid microextraction device by Nascimento, Madson Moreira, Nascimento, Melise Lemos, Pereira dos Anjos, Jeancarlo, Cunha, Ricardo Leal, da Rocha, Gisele Olimpio, Ferreira dos Santos, Ivanice, Pereira, Pedro Afonso de Paula, de Andrade, Jailson Bittencourt

“…•A new semi-automated customized LPME device is proposed.•A simple LPME procedure allowed the simultaneous determination of nine illicit drugs.•Cocaine was the…”
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Illicit drugs in Brazil: environmental consequences and consumption patterns by da Silva Junior, André Luiz Sampaio, Santana, Gregório Mateus, Nascimento, Madson Moreira, Cunha, Ricardo Leal, Mesquita, Paulo Roberto Ribeiro, de Jesus, Raildo Mota

“…This article reviews the literature on the consumption, street drug analysis, distribution, and main environmental impacts of illicit drugs in Brazil and…”
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Preliminary Detection of New Psychoactive Substances (NPS) in Synthetic Drugs Seizures in the Northeast Brazil in a Period of Two Years (2014–2016) by Ricardo Leal Cunha, Márcia Maria Portela de Santana, Celinalva da Silva Lima Oliveira

“…In the period from 2014 to 2016 a growing number of seizures of synthetic drugs, such as blotter papers, tablets, powders and crystals has occurred in the…”
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Perfil Químico Dos Compostos Orgânicos Voláteis (Cov) Encontrados Em Inalantes Apreendidos No Carnaval Da Bahia by Ricardo Leal Cunha, Celinalva Da Silva Lima Oliveira

“…A ampla disponibilidade e o baixo custo de Compostos Orgânicos Voláteis (COV) têm contribuído para o aumento do uso recreacional dessas substâncias em festas…”
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