Results 61 to 70 of about 2,731 (212)

Rapid Detection of Benzoylecgonine in Vitreous Humor by Enzyme Immunoassay [PDF]

Journal of Analytical Toxicology, 2001
The usual specimens submitted by a medical examiner for toxicological analysis include blood, urine, bile, vitreous humor, stomach contents, and solid-organ tissue. The detection of drugs in these specimens typically involves a combination of techniques including colorimetry, immunoassay, and gas chromatography.
C W, Chronister, J C, Walrath, B A, Goldberger   +2 more
openaire   +2 more sources

Assessing illicit drugs in wastewater: a pilot study in Mexico

Salud Pública de México, 2019
Objective. Monitor drug use through wastewater metabolite measurement. Materials and methods. Wastewater samples were obtained from 31 wastewater treatment plants and 95 sites with specific populations (38 schools, 42 units of addiction treatment and 15 ...
Copytzy Cruz-Cruz, Desireé Vidaña-Pérez, Manuel Mondragón y Kalb, María José Martínez-Ruiz, Gustavo Olaiz-Fernández, Luis Fernando Hernández-Lezama, Mauricio Hernández-Ávila, Tonatiuh Barrientos-Gutiérrez   +7 more
doaj   +1 more source

Stability of Cocaine, Opiates, and Metabolites in Dried Saliva Spots

Molecules, 2022
Drug abuse still represents a global problem, and it is associated with an increased risk of diseases, injuries, and deaths. Cocaine (COC) and opiates are the most abused drugs and account for a significant number of fatalities.
Ema Almeida, Sofia Soares, Joana Gonçalves, Tiago Rosado, Nicolás Fernández, Jesus M. Rodilla, Luís A. Passarinha, Mário Barroso, Eugenia Gallardo   +8 more
doaj   +1 more source

Prevalence of AAS‐Positive Samples at Drug Abuse Laboratory Sweden Between 2014 and 2023 and Sub‐Study of Dual Use of AAS and Narcotics

Drug Testing and Analysis, Volume 17, Issue 12, Page 2421-2428, December 2025.
Throughout 2014–2023, over 20,000 AAS analyses have been conducted at the drug of abuse laboratory, Karolinska University Hospital. Approximately 20% and 2% of the samples have been positive for AAS, with no trends of increase or decrease. Around 50% of the AAS‐positive samples were also positive for narcotics (year 2022–2023), with gender differences;
Kim Petterson Bohlin, Tomas Villén, Oscar Hopcraft, Anton Pohanka, Lena Ekström   +4 more
wiley   +1 more source

Survey on 9 years of anti‐doping controls in horse races in Italy

Equine Veterinary Journal, Volume 57, Issue 6, Page 1592-1599, November 2025.
Abstract Background Doping in racehorses is a threat to horse welfare and the integrity of the sport. Despite its relevance, the literature on the prevalence of anti‐doping violations worldwide is limited. Objectives To analyse anti‐doping violations in racehorses in Italy. Study Design Retrospective observational study.
Mariana Roccaro, Riccardo Rinnovati, Luca Stucchi, Federica La Rocca, Giuseppe Cascio, Angelo Peli   +5 more
wiley   +1 more source

Optimized conditions for simultaneous determination of opiates, cocaine and benzoylecgonine in hair samples by GC-MS

, 2003
The present paper describes a qualitative and quantitative method for the simultaneous detection of opiates, cocaine and benzoylecgonine from human hair samples. Every step of the analytical procedure was studied to find the optimized conditions.
Lopez, A., Palmi, I., Rotolo, M. C., Romolo, F. S. (ORCID:0000-0002-5334-0960), Pacifici, R.   +4 more
core   +2 more sources

Cocaine use associated gut permeability and microbial translocation in people living with HIV in the Miami Adult Study on HIV (MASH) cohort.

PLoS ONE, 2022
ObjectiveDetermine if cocaine use impacts gut permeability, promotes microbial translocation and immune activation in people living with HIV (PLWH) using effective antiretroviral therapy (ART).MethodsCross-sectional analysis of 100 PLWH (ART ≥6 months ...
Jacqueline Hernandez, Javier A Tamargo, Sabrina Sales Martinez, Haley R Martin, Adriana Campa, Rafick-Pierre Sékaly, Rebeka Bordi, Kenneth E Sherman, Susan D Rouster, Heidi L Meeds, Jag H Khalsa, Raul N Mandler, Shenghan Lai, Marianna K Baum   +13 more
doaj   +1 more source

Synthesis And Application Of Molecularly Imprinted Solid-Phase Extraction For The Determination Of Terbutaline In Biological Matrices [QD382.I43 L732 2006 f rb]. [PDF]

, 2006
Kajian ini tertumpu kepada penilaian keberkesanan penggunaan MIPs sebagai bahan padatan dalam SPE untuk pengekstrakan terbutalina di dalam sampel plasma dan urin. Polimer ini dihasilkan dengan menggunakan asid metakrilik (MAA) sebagai monomer dan etilena
Lim, Lay Lee
core  

Infant Death due to Cannabis Ingestion

Drug Testing and Analysis, Volume 17, Issue 10, Page 2014-2021, October 2025.
ABSTRACT A child died in the emergency room of a local hospital a few hours after ingesting a substance the color of cork and the consistency of earth. At home, a modest amount of resinous substance was found. At the hospital, the child exhibited alterations in walking, balance, and consciousness.
Donata Favretto, Antonello Cirnelli, Roberto Pertile, Raffaella Stimamiglio, Clara Cestonaro, Oriana Cuman, Anna Pagliaro, Fabio Mattiazzi, Cristina Basso, Maddalena Galeazzi   +9 more
wiley   +1 more source

Use of the USDT flow immunosensor for quantitation of benzoylecgonine in urine

Biosensors and Bioelectronics, 1996
The flow immunosensor works on a principle somewhat distinct from other immunoassay systems in that it performs a displacement immunoassay. Antibody-coated matrices are saturated with fluorescently labeled benzoylecgonine (BE), which is released and measured in the presence of BE-containing urine and measured downstream from the matrix.
H, Yu, A W, Kusterbeck, M J, Hale, F S, Ligler, J P, Whelan   +4 more
openaire   +2 more sources