Magnetic dispersive solid phase extraction based on carbonized cellulose-ferromagnetic nanocomposite for screening...

Area of Science:

• Analytical Chemistry
• Materials Science
• Environmental Science

Background:

• Plasticizers are common contaminants in aqueous environments.
• Efficient extraction methods are crucial for detecting plasticizers in complex matrices.
• Existing methods may lack efficiency or require extensive sample preparation.

Purpose of the Study:

• To develop and validate a novel magnetic sorbent for plasticizer extraction.
• To combine magnetic dispersive solid phase extraction with dispersive liquid-liquid microextraction for enhanced analysis.
• To assess the sorbent's performance in real-world aqueous samples.

Main Methods:

• Preparation of a carbonized cellulose-ferromagnetic nanocomposite sorbent.
• Application of magnetic dispersive solid phase extraction coupled with dispersive liquid-liquid microextraction.
• Analysis of extracted plasticizers using gas chromatography-flame ionization detection.

Main Results:

• The developed sorbent demonstrated high efficiency for plasticizer extraction from aqueous samples.
• Optimized method achieved low limits of detection (0.15-0.50 µg L⁻¹).
• High enrichment factors (286-403) and satisfactory recoveries (57-80%) were obtained.

Conclusions:

• The carbonized cellulose-ferromagnetic nanocomposite is a viable sorbent for magnetic dispersive solid phase extraction of plasticizers.
• The combined extraction technique provides an efficient clean-up and enrichment strategy.
• The method proved effective for analyzing plasticizers in diverse real samples, including beverages and pharmaceutical solutions.