University Of Tasmania

File(s) under permanent embargo

Fabrication and evaluation of a portable low-pressure headspace solid-phase microextraction device for on-site analysis

journal contribution
posted on 2023-05-21, 02:21 authored by Derikvand, A, Alireza GhiasvandAlireza Ghiasvand, Dalvand, K, Paul HaddadPaul Haddad

A compact, simple, and reliable low-pressure headspace solid-phase microextraction (LP-HS-SPME) device was fabricated, optimized, and successfully evaluated for on-site sampling of volatile and semivolatile environmental organic pollutants. The efficacy of low-pressure extraction for fast and accurate analysis of complex samples has been substantiated already, but the developed systems are laborious and usually use typical vacuum pumps which make them non-portable. Additionally, they are not suitable for direct sampling of analytes from solid samples. This LP-HS-SPME setup is pocket-sized and operator friendly and uses a syringe for the evacuation. It is very effective for the direct sampling of volatile and semivolatile analytes in complex liquid and solid matrices. A new electrospun nano-octadecylsilica/polyvinyl alcohol (NODS/PVA) coated fiber was prepared and characterized by SEM, EDX, and FT-IR techniques. The fiber was utilized with the developed device for the extraction and determination of PAHs in solid samples, by coupling with gas chromatography-flame ionization detection (GC-FID). A response surface methodology based on a central composite design was used to optimize the important experimental variables. The method calibration graphs were linear in the range of 0.01–1300 ng g−1 and the detection limits were 3 to 50 pg g−1. The repeatability for a single-fiber and inter-fiber reproducibility were obtained 5.3–9.9% and 12.2–18.5%, respectively. The NODS/PVA coated fiber and the LP-HS-SPME-GC-FID method were successfully assessed for the direct sampling and analysis of PAHs in polluted soil samples.


Publication title

Microchemical Journal



Article number









School of Natural Sciences


Elsevier Inc

Place of publication

United States

Rights statement

© 2021 Elsevier B.V. All rights reserved.

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the biomedical and clinical sciences

Usage metrics

    University Of Tasmania