Development of solid phase micro-extraction method based on ZnO composite and multi-walled carbon nanotube for extraction and measurement of some polycyclic aromatic hydrocarbons in tobacco

Subject Areas : Journal of Quality and Durability of Agricultural Products and Food Stuffs

Rezvan Askari Badoee ¹ (Department of Chemistry, Kerman branch, Islamic Azad University, Kerman, Iran )
Maryam Kazemipour ² (دانشگاه آزاد کرمان)
neda mohammadi ³ (Herbal and Traditional Medicine Research Center, Kerman University of Medical Sciences, Kerman, Iran )
Mohammad Mehdipour ⁴ (Deputy of Food and Drug, Kerman University of Medical Sciences, Kerman, Iran )

Received: 2024-08-01 Accepted : 2024-08-10

Keywords: Zinc oxide nanoparticles, Multi-walled carbon nanotube, Nanocomposite, Head space method, Gas chromatography.,

Abstract :

Polycyclic Aromatic Hydrocarbons (PAHs) are a group of chemicals that are naturally present in coal, crude oil, and gasoline. These substances are found in products made from fossil fuels such as coal tar, creosote and asphalt. When coal is converted to natural gas, PAHs can be released. With the expansion of the use of fossil materials, the contamination of food with these pollutants has become a health threat all over the world in such a way that many regulatory authorities have set permissible limits for them. Today, the measurement of these pollutants in food is one of the important research fields. In this research, ZnO/MWCNTs nanocomposite coating was fabricated on stainless steel and investigated as a new upper space solid phase microextraction (HS-SPME) fiber coating for extracting small amounts of environmental pollutants. The characteristics of the prepared nanocomposite were evaluated using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The parameters affecting the HS-SPME of hydrocarbons (for example, extraction temperature, extraction time, desorption temperature, desorption time, and salt concentration) were investigated and optimized using the method of one variable at a time. The results obtained in this work show that the prepared nanocomposite can be a promising coating material for future applications of SPME and related sample preparation techniques.

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