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Related Concept Videos

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

Gas Chromatography–Mass Spectrometry (GC–MS)

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Supercritical fluid chromatography (SFC) provides a beneficial substitute for gas chromatography (GC) and liquid chromatography (LC) for certain samples because it merges the top attributes of both techniques. SFC allows the separation and analysis of compounds that GC or LC does not easily manage. These compounds are traditionally nonvolatile or thermally unstable, making GC unsuitable and lacking functional groups required for HPLC analysis.
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Related Experiment Video

Updated: May 5, 2026

Profiling Volatile Compounds in Blackcurrant Fruit using Headspace Solid-Phase Microextraction Coupled to Gas Chromatography-Mass Spectrometry
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An efficient method for measuring dissolved VOSCs in wastewater using GC-SCD with static headspace technique.

Jing Sun1, Shihu Hu1, Keshab Raj Sharma1

  • 1Advanced Water Management Center, The University of Queensland, St. Lucia, 4072 Queensland, Australia.

Water Research
|November 26, 2013
PubMed
Summary

A new method accurately measures volatile organic sulfur compounds (VOSCs) in wastewater. This technique simplifies the analysis of odor-causing VOSCs, like methanethiol, dimethyl sulfide, and dimethyl disulfide, in sewage systems.

Keywords:
Gas chromatography (GC)Static headspace techniqueSulfur chemiluminescence detector (SCD)Volatile organic sulfur compounds (VOSCs)Wastewater

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Area of Science:

  • Environmental Chemistry
  • Analytical Chemistry

Background:

  • Volatile organic sulfur compounds (VOSCs) contribute significantly to unpleasant odors in wastewater systems.
  • Studying VOSCs is challenging due to complex measurement techniques and their reactive properties.

Purpose of the Study:

  • To develop a simplified, quantitative method for analyzing VOSCs in wastewater.
  • To establish a reliable technique for routine monitoring of VOSCs in sewage environments.

Main Methods:

  • A static headspace method coupled with gas chromatography (GC) and a sulfur chemiluminescence detector (SCD) was employed.
  • The method was validated using methanethiol (MT), dimethyl sulfide (DMS), and dimethyl disulfide (DMDS) as target analytes.
  • Sample preservation techniques under acidified conditions were also investigated.

Main Results:

  • The developed method demonstrated low detection limits (0.08–0.21 ppb) and good linearity (R² > 0.999) for MT, DMS, and DMDS.
  • High reproducibility (RSD ≈ 2%) and recovery rates (83–103%) were achieved for the target VOSCs.
  • Effective sample preservation for at least 24 hours was confirmed under specific acidified conditions.

Conclusions:

  • The static headspace GC-SCD method provides a sensitive, reproducible, and accurate approach for quantifying VOSCs in wastewater.
  • This method is suitable for routine analysis and addresses previous limitations in VOSC measurement.
  • The findings support improved monitoring and management of odor issues in wastewater systems.