Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

MALDI-TOF Mass Spectrometry01:19

MALDI-TOF Mass Spectrometry

6.4K
Mass spectrometry is a powerful characterization technique that can identify and separate a wide variety of compounds ranging from chemical to biological entities, based on their mass-to-charge ratio (m/z). The instruments that allow this detection, known as mass spectrometers, have three components: an ion source, a mass analyzer, and a detector. These spectrometers differ based on the nature of their ion source and analyzers.Matrix-assisted laser desorption ionization (MALDI) is a commonly...
6.4K
Mass Spectrometry: Complex Analysis01:21

Mass Spectrometry: Complex Analysis

1.5K
Mass spectrometry is an important technique for the identification of pure compounds. However, it has some limitations for the analysis of complex mixtures, often due to excessive fragmentation making the spectrum too complicated to decipher. Mass spectrometry can be combined with suitable separation methods in sequence, forming hyphenated methods, which are useful in the analysis of complex mixtures.
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...
1.5K
High-Resolution Mass Spectrometry (HRMS)01:15

High-Resolution Mass Spectrometry (HRMS)

2.3K
The resolution of a mass spectrometer depends on the efficiency of separating ions with different ion masses. The mass of an atom is approximated to the sum of the masses of protons and neutrons inside, considering the masses of protons and neutrons as equal. However, the masses of the proton (1.6726 × 10−24 g) and neutron (1.6749 × 10−24 g) are not truly equal. There is a minor error in the expression of atomic masses relative to the simplest atom of hydrogen. For...
2.3K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Two-Step 3D Microphone Array Fusion Algorithm to Enhance Sound Source Location Measurements.

Sensors (Basel, Switzerland)·2026
Same author

Medical-Dental Integration in Community Health Centres: An Environmental Scan of British Columbia.

Journal (Canadian Dental Association)·2026
Same author

Uniaxial order parameters associated with surface SFG spectra. II. Distributions with polar and azimuthal ordering.

The Journal of chemical physics·2026
Same author

Detection of Fentanyl Analogues in Illicit Drug Samples Using Surface-Enhanced Raman Spectroscopy and Random Forest Classification.

Applied spectroscopy·2026
Same author

Carfentanil in the illicit drug supply: A machine learning approach for trace detection using surface-enhanced Raman spectroscopy.

The International journal on drug policy·2026
Same author

Drug sellers' use of a drug checking service amid the overdose crisis in British Columbia, Canada.

Addiction (Abingdon, England)·2026

Video Experimental Relacionado

Updated: Jan 7, 2026

High-throughput and Comprehensive Drug Surveillance Using Multisegment Injection-Capillary Electrophoresis-Mass Spectrometry
10:17

High-throughput and Comprehensive Drug Surveillance Using Multisegment Injection-Capillary Electrophoresis-Mass Spectrometry

Published on: April 23, 2019

10.1K

Clasificación de opioides ilícitos adulterados mediante máquina de vectores de soporte y espectrometría de masas con

Allie Miskulin1, Bruce Wallace2,3, Chris G Gill1,3,4,5

  • 1Department of Chemistry, University of Victoria, Victoria, British Columbia V8W 3V6, Canada.

Analytical chemistry
|December 26, 2025
PubMed
Resumen

Nuevos métodos de verificación de drogas utilizan el aprendizaje automático para detectar adulterantes de fentanilo desconocidos en muestras de opioides. Este enfoque mejora la seguridad pública al identificar sustancias emergentes en el suministro de drogas.

Palabras clave:
fentaniloopioidesadulterantesespectrometría de masasaprendizaje automáticoquímica forenseverificación de drogas

Más Videos Relacionados

Author Spotlight: An Efficient Methodology to Confidently Differentiate and Characterize Fentanyl Analogs
10:13

Author Spotlight: An Efficient Methodology to Confidently Differentiate and Characterize Fentanyl Analogs

Published on: November 8, 2024

2.8K
Rapid High-throughput Species Identification of Botanical Material Using Direct Analysis in Real Time High Resolution Mass Spectrometry
11:14

Rapid High-throughput Species Identification of Botanical Material Using Direct Analysis in Real Time High Resolution Mass Spectrometry

Published on: October 2, 2016

12.1K

Videos de Experimentos Relacionados

Last Updated: Jan 7, 2026

High-throughput and Comprehensive Drug Surveillance Using Multisegment Injection-Capillary Electrophoresis-Mass Spectrometry
10:17

High-throughput and Comprehensive Drug Surveillance Using Multisegment Injection-Capillary Electrophoresis-Mass Spectrometry

Published on: April 23, 2019

10.1K
Author Spotlight: An Efficient Methodology to Confidently Differentiate and Characterize Fentanyl Analogs
10:13

Author Spotlight: An Efficient Methodology to Confidently Differentiate and Characterize Fentanyl Analogs

Published on: November 8, 2024

2.8K
Rapid High-throughput Species Identification of Botanical Material Using Direct Analysis in Real Time High Resolution Mass Spectrometry
11:14

Rapid High-throughput Species Identification of Botanical Material Using Direct Analysis in Real Time High Resolution Mass Spectrometry

Published on: October 2, 2016

12.1K

Sus antecedentes:

  • El suministro de opioides ilícitos en América del Norte es complejo y potente, lo que representa un riesgo para los consumidores de drogas.
  • Los métodos actuales de verificación de drogas, como la espectrometría de masas con pulverización en papel (PS-MS) dirigida, tienen dificultades para detectar nuevas sustancias psicoactivas.
  • Los adulterantes emergentes en las drogas ilícitas requieren técnicas analíticas avanzadas para una identificación oportuna.

Conclusiones:

  • El enfoque SVM desarrollado identifica eficazmente los adulterantes a partir de datos de espectrometría de masas durante el análisis rutinario de drogas.
  • Este método mejora la capacidad de los programas de verificación de drogas para detectar sustancias nuevas y emergentes.
  • Los hallazgos ofrecen una nueva estrategia para mejorar la seguridad del suministro de drogas ilícitas.