Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Headspace solvent microextraction.

A L Theis1, A J Waldack, S M Hansen

  • 1Department of Chemistry, St. Cloud State University, Minnesota 56301-4498, USA.

Analytical Chemistry
|January 5, 2002
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Neurological prognostication tools in out-of-hospital cardiac arrest patients in Danish intensive care units from 2005 to 2013.

Acta anaesthesiologica Scandinavica·2018
Same author

The police, social services, and psychiatry (PSP) cooperation as a platform for dealing with concerns of radicalization.

International review of psychiatry (Abingdon, England)·2017
Same author

Seismic evidence for a cold serpentinized mantle wedge beneath Mount St Helens.

Nature communications·2016
Same author

Solvent microextraction into a single drop.

Analytical chemistry·2011
Same author

Signaling mechanisms of neurite outgrowth induced by the cell adhesion molecules NCAM and N-cadherin.

Cellular and molecular life sciences : CMLS·2008
Same author

Observation of gel-induced protein modifications in sodium dodecylsulfate [corrected] polyacrylamide gel electrophoresis and its implications for accurate molecular weight determination of gel-separated proteins by matrix-assisted laser desorption ionization time-of-flight mass spectrometry.

Journal of the American Society for Mass Spectrometry·1999
Same journal

Biodegradable Self-Powered Electrotherapy Patch for Integrated Smart Wound Management.

Analytical chemistry·2026
Same journal

Metabolite Fraction Libraries for Quantitative NMR Metabolomics.

Analytical chemistry·2026
Same journal

Self-Contained Lateral-Flow Microfluidic Bead-Based Assay for Rapid Quantification of Early-Stage Kidney Biomarkers.

Analytical chemistry·2026
Same journal

Overcoming the Debye Shielding Effect with Concave-Convex Structures for Sensitivity-Enhanced Thin-Film Transistors.

Analytical chemistry·2026
Same journal

Mode-Phase-Difference Photothermal Spectroscopy Assisted by a Bent Biconically Tapered Microfiber for Gas Sensing.

Analytical chemistry·2026
Same journal

Negative-Pressure-Actuated Microfluidics: A Dual-Mode Point-of-Care Sensor for Allergen-Specific IgE in Interstitial Fluid.

Analytical chemistry·2026
See all related articles

A hanging 1-octanol microdrop efficiently preconcentrates volatile organic compounds from aqueous samples for gas chromatography analysis. This method offers a simple, precise, and cost-effective way to detect trace contaminants.

Area of Science:

  • Analytical Chemistry
  • Environmental Science

Background:

  • Headspace analysis is crucial for detecting volatile organic compounds (VOCs) in aqueous matrices.
  • Traditional preconcentration methods can be complex and time-consuming.

Purpose of the Study:

  • To evaluate 1-octanol as a preconcentration medium for headspace analysis of VOCs.
  • To develop an efficient method for trace-level determination of VOCs using gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS).

Main Methods:

  • Utilized a hanging microliter drop of 1-octanol as the preconcentration medium.
  • Employed gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS) for analysis.
  • Investigated the preconcentration of model compounds: benzene, toluene, ethylbenzene, and o-xylene (BTEX) with decane as an internal standard.

Related Experiment Videos

Main Results:

  • 1-octanol effectively preconcentrated BTEX compounds from an aqueous matrix.
  • Linear calibration curves were obtained, demonstrating quantitative analysis.
  • Mass transfer kinetics were influenced by aqueous stirring and organic phase convection.
  • Minimal 1-octanol evaporation occurred due to its low vapor pressure.

Conclusions:

  • A hanging 1-octanol drop is an excellent, cost-effective preconcentration medium for headspace GC/GC-MS analysis.
  • The method is convenient, precise, and suitable for determining trace levels of volatile organic compounds.