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Related Concept Videos

Gas Chromatography–Mass Spectrometry (GC–MS)01:14

Gas Chromatography–Mass Spectrometry (GC–MS)

Gas chromatography–mass spectrometry (GC–MS) is the combination of analytical techniques of gas chromatography and mass spectrometry in a single instrument for analyzing a mixture of compounds. The gas chromatograph separates the compounds in the mixture, and the mass spectrometer analyzes each compound separately to determine the molecular masses and molecular structures.
A gas chromatograph consists of a long, narrow capillary column with a polysiloxane coating on the inner wall. The coating...
Mass Spectrometry: Complex Analysis01:21

Mass Spectrometry: Complex Analysis

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...
Tandem Mass Spectrometry01:21

Tandem Mass Spectrometry

Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...
Gas Chromatography: Introduction01:13

Gas Chromatography: Introduction

Gas chromatography (GC) is a technique for separating and analyzing volatile compounds in a sample. Its primary purpose is to identify and quantify components in complex mixtures, making it essential in fields such as environmental analysis, pharmaceuticals, and petrochemicals. GC is also called vapor-phase chromatography (VPC) or gas-liquid partition chromatography (GLPC).
In GC,  a sample is vaporized and mixed with an inert carrier gas (the mobile phase), which transports it through a column.
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences01:20

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences

Inductively coupled plasma–mass spectrometry (ICP–MS) is a highly selective and sensitive technique for accurate elemental analysis. Though the analysis of ICP–MS mass spectra is comparatively straightforward, it is affected by spectroscopic and non-spectroscopic interferences. Spectroscopic interferences arise when the plasma contains ionic species with an m/z value the same as the analyte ion. Spectroscopic interference can be categorized as isobaric, polyatomic ions, and refractory oxide ion...
Mass Spectrometry: Overview01:19

Mass Spectrometry: Overview

Mass spectrometry is an analytical technique used to determine the molecular mass and molecular formula of a compound. The basic principle of mass spectrometry is to generate ions from the analyte molecule and measure these ion abundances against their molecular mass. One common type of ionization, known as electron ionization or EI, bombards the analyte molecules in the gas phase with high-energy electron beams. The electron beams displace an electron from the molecule and leave behind a...

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Facile Preparation of 4-Substituted Quinazoline Derivatives
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Facile Preparation of 4-Substituted Quinazoline Derivatives

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Product Review: GC/MS: Not the same old combination.

C M Henry

    Analytical Chemistry
    |June 10, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Gas chromatography-mass spectrometry (GC/MS) systems remain relevant for analytical chemistry applications. These established techniques continue to provide valuable data despite the emergence of newer technologies.

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    Last Updated: Jun 1, 2026

    Facile Preparation of 4-Substituted Quinazoline Derivatives
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    Untargeted Liquid Chromatography-Mass Spectrometry-Based Metabolomics Analysis of Wheat Grain
    07:10

    Untargeted Liquid Chromatography-Mass Spectrometry-Based Metabolomics Analysis of Wheat Grain

    Published on: March 13, 2020

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    Published on: January 7, 2019

    Area of Science:

    • Analytical Chemistry
    • Spectroscopy

    Background:

    • Gas chromatography-mass spectrometry (GC/MS) is a foundational analytical technique.
    • The field is evolving with newer analytical methods.
    • The continued utility of GC/MS requires evaluation.

    Purpose of the Study:

    • To assess the ongoing relevance and capabilities of GC/MS systems.
    • To highlight the enduring applications of GC/MS in various scientific domains.

    Main Methods:

    • Review of current GC/MS instrumentation and methodologies.
    • Analysis of recent scientific literature featuring GC/MS applications.
    • Comparison of GC/MS performance with alternative analytical techniques.

    Main Results:

    • GC/MS systems demonstrate continued effectiveness in complex mixture analysis.
    • Key applications include environmental monitoring, pharmaceutical analysis, and forensic science.
    • Advancements in GC/MS technology enhance sensitivity and resolution.

    Conclusions:

    • GC/MS remains a vital and versatile tool in the analytical chemist's toolkit.
    • Its established reliability and cost-effectiveness ensure its continued use.
    • Further innovations will sustain the role of GC/MS in scientific research.