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Related Experiment Video

Updated: Jun 19, 2026

Extraction and Analysis of Microbial Phospholipid Fatty Acids in Soils
10:03

Extraction and Analysis of Microbial Phospholipid Fatty Acids in Soils

Published on: August 26, 2016

Quantitative determination of 16 polycyclic aromatic hydrocarbons in soil samples using solid-phase microextraction.

Yonghua Wang1, Juan Zhang, Youchao Ding

  • 1State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, PR China. pandanju@gmail.com

Journal of Separation Science
|October 21, 2009
PubMed
Summary
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A new method efficiently determines polycyclic aromatic hydrocarbons (PAHs) in soil using ultrasonic-assisted extraction and solid-phase microextraction (SPME). The 100 micrometer PDMS fiber proved optimal for reliable and sensitive PAH analysis.

Area of Science:

  • Environmental Chemistry
  • Analytical Chemistry

Background:

  • Polycyclic Aromatic Hydrocarbons (PAHs) are persistent organic pollutants found in soil.
  • Accurate determination of PAHs is crucial for environmental monitoring and risk assessment.

Purpose of the Study:

  • To develop and validate a sensitive, reliable, and cost-effective method for quantifying 16 PAHs in soil samples.
  • To optimize solid-phase microextraction (SPME) fiber selection for PAH determination.

Main Methods:

  • Development of an ultrasonic-assisted extraction method combined with SPME.
  • Comparison of five commercial SPME fibers (100 µm PDMS, 30 µm PDMS, 65 µm PDMS/DVB, 50 µm DVB/CAR/PDMS, 85 µm PA) for PAH extraction.
  • Gas Chromatography-Mass Spectrometry (GC-MS) for PAH identification and quantification.

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Analysis of Organochlorine Pesticides in a Soil Sample by a Modified QuEChERS Approach Using Ammonium Formate
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Last Updated: Jun 19, 2026

Extraction and Analysis of Microbial Phospholipid Fatty Acids in Soils
10:03

Extraction and Analysis of Microbial Phospholipid Fatty Acids in Soils

Published on: August 26, 2016

A Modified QuEChERS-HPLC Method for Detection of Polycyclic Aromatic Hydrocarbons in Zebrafish Embryos Exposed to Fine Particulate Matter
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A Modified QuEChERS-HPLC Method for Detection of Polycyclic Aromatic Hydrocarbons in Zebrafish Embryos Exposed to Fine Particulate Matter

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Analysis of Organochlorine Pesticides in a Soil Sample by a Modified QuEChERS Approach Using Ammonium Formate
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Analysis of Organochlorine Pesticides in a Soil Sample by a Modified QuEChERS Approach Using Ammonium Formate

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Main Results:

  • The 100 micrometer PDMS fiber demonstrated superior performance, offering a wider linear range, better repeatability, lower detection limits, and higher efficacy compared to other fibers.
  • The optimized method achieved low nanogram level detection limits with correlation coefficients > 0.98.
  • Recoveries from spiked soil samples exceeded 79.3%, and the method showed reliability in field studies with naturally contaminated samples.

Conclusions:

  • The developed ultrasonic-assisted extraction with 100 µm PDMS SPME and GC-MS is a reliable, inexpensive, and simple method for the quantitative determination of 16 PAHs in soil.
  • This method is suitable for both laboratory analysis and field applications in environmental monitoring of PAH contamination.