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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...
Gas Chromatography: Overview of Detectors01:13

Gas Chromatography: Overview of Detectors

Detectors in gas chromatography (GC) help identify and quantify the components of a mixture by translating chemical properties into measurable signals, which are displayed on a chromatogram. Detectors can be categorized into two main types: destructive and non-destructive.
A non-destructive detector allows a sample to be analyzed without altering or consuming it, meaning the sample can be collected after detection for further analysis. Examples include thermal conductivity detectors and...
Gas Chromatography: Types of Detectors-II01:19

Gas Chromatography: Types of Detectors-II

In gas chromatography, different detectors are employed to meet specific analytical needs. These detectors are often categorized based on their detection mechanisms and the types of compounds they are best suited to analyze. Thermal Conductivity Detectors (TCD), Flame Ionization Detectors (FID), and Electron Capture Detectors (ECD) represent common categories, each with unique operating principles and applications. However, beyond these, several other detectors are designed for more specialized...

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Related Experiment Video

Updated: Jul 16, 2026

Fruit Volatile Analysis Using an Electronic Nose
11:02

Fruit Volatile Analysis Using an Electronic Nose

Published on: March 30, 2012

Deciphering Flavor Signatures of Early-Maturing Table Grapes: A Synergistic Multi-Sensor Approach Using E-Nose,

Ci Zhang1, Jinglin Zhang1, Qiankun Wang1

  • 1Shanghai Academy of Agricultural Sciences, Shanghai 201403, China.

Foods (Basel, Switzerland)
|July 15, 2026
PubMed
Summary

Early-maturing table grapes were analyzed for aroma compounds using advanced techniques. This research classifies grape cultivars into distinct aroma groups, aiding in breeding and quality management.

Keywords:
aroma phenotypingchemometricsmass spectrometrymetabolite profilingmulti-sensor data fusion

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Last Updated: Jul 16, 2026

Fruit Volatile Analysis Using an Electronic Nose
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Published on: March 30, 2012

The Terroir Concept Interpreted through Grape Berry Metabolomics and Transcriptomics
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The Terroir Concept Interpreted through Grape Berry Metabolomics and Transcriptomics

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Profiling Volatile Compounds in Blackcurrant Fruit using Headspace Solid-Phase Microextraction Coupled to Gas Chromatography-Mass Spectrometry
05:29

Profiling Volatile Compounds in Blackcurrant Fruit using Headspace Solid-Phase Microextraction Coupled to Gas Chromatography-Mass Spectrometry

Published on: June 9, 2021

Area of Science:

  • Agricultural Science
  • Food Science
  • Analytical Chemistry

Background:

  • Early-maturing table grapes have high commercial value.
  • Understanding the link between ripening, aroma, and quality is crucial but underexplored.
  • Metabolic impacts on aroma profiles during shortened ripening cycles require investigation.

Purpose of the Study:

  • To comprehensively characterize aroma profiles of early-maturing table grape cultivars.
  • To investigate the relationship between physicochemical properties and volatile compounds.
  • To classify cultivars based on their distinct aroma profiles using multi-platform volatile analysis.

Main Methods:

  • Integrated physicochemical phenotyping (firmness, total soluble solids, phenolic content).
  • Multi-platform volatile analysis using electronic-nose (E-nose), gas chromatography-mass spectrometry (GC-MS), and gas chromatography-ion mobility spectrometry (GC-IMS).
  • Classification of cultivars into aroma-related groups based on instrumental volatile profiling.

Main Results:

  • Cultivars were grouped into Muscat-type (floral monoterpenes), Strawberry-type (fruity esters/aldehydes), and Neutral-type (herbaceous C6 compounds).
  • The combination of E-nose, GC-MS, and GC-IMS provided complementary data for differentiating volatile profiles.
  • GC-IMS enhanced the detection of trace low-molecular-weight volatiles, improving characterization of cultivar-specific aroma compounds.

Conclusions:

  • Instrumental profiling provides a basis for understanding volatile differences in early-maturing table grapes.
  • Findings support cultivar evaluation, flavor-oriented breeding programs, and postharvest quality management.
  • Multi-platform volatile analysis is effective for detailed aroma characterization of grape cultivars.