Ultrasound-assisted deep eutectic solvent-based liquid-liquid microextraction for simultaneous determination of Ni (II) and Zn (II) in food samples

Fazal Elahi; Muhammad Balal Arain; Wajid Ali Khan; Hameed Ul Haq; Asif Khan; Faheem Jan; Roberto Castro-Muñoz; Grzegorz Boczkaj

doi:10.1016/j.foodchem.2022.133384

Ultrasound-assisted deep eutectic solvent-based liquid-liquid microextraction for simultaneous determination of Ni (II) and Zn (II) in food samples

Food Chem. 2022 Nov 1:393:133384. doi: 10.1016/j.foodchem.2022.133384. Epub 2022 Jun 2.

Authors

Fazal Elahi¹, Muhammad Balal Arain², Wajid Ali Khan¹, Hameed Ul Haq³, Asif Khan¹, Faheem Jan⁴, Roberto Castro-Muñoz⁵, Grzegorz Boczkaj⁶

Affiliations

¹ Department of Chemistry, Abdul Wali Khan University Mardan, 23200 KP, Pakistan.
² Department of Chemistry, University of Karachi, Karachi 75270, Pakistan.
³ Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Department of Sanitary Engineering, 80 - 233 Gdansk, G. Narutowicza St. 11/12, Poland. Electronic address: hameed.haq@pg.edu.pl.
⁴ School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, Liaoning, People's Republic of China.
⁵ Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Department of Sanitary Engineering, 80 - 233 Gdansk, G. Narutowicza St. 11/12, Poland; Tecnologico de Monterrey, Campus Toluca, Avenida Eduardo Monroy, Cárdenas 2000 San Antonio Buenavista, 50110 Toluca de Lerdo, Mexico.
⁶ Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Department of Sanitary Engineering, 80 - 233 Gdansk, G. Narutowicza St. 11/12, Poland; EkoTech Center, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland. Electronic address: grzegorz.boczkaj@pg.edu.pl.

PMID: 35667182
DOI: 10.1016/j.foodchem.2022.133384

Abstract

A new approach was developed for the simultaneous pre-concentration and determination of Ni (II) and Zn (II) in food samples. This method is based on ultrasound-assisted liquid-liquid micro extraction using hydrophobic deep eutectic solvent (DES) and 1,10-phenanthroline as chelating agent. The effect of several parameters, such as pH, selection and volume of DES, amount of chelating agent, time of sonication and centrifugation, was studied. Under optimized conditions, the developed procedure offered exceptional sensitivity and linearity. The limit of detection was approximately 0.029 µg/Kg and 1.5 µg/Kg for Ni (II) and Zn (II), respectively. The proposed method was applied for the pre-concentration and determination of Ni (II) and Zn (II) in hydrogenated edible oils, fishes, and milk samples. The results of this study were compared with reported methods in the literature revealing its advantages.

Keywords: Deep eutectic solvent; FAAS; Food samples; Metals extraction; Mineralization; Sample preparation.

MeSH terms

Chelating Agents
Deep Eutectic Solvents
Limit of Detection
Liquid Phase Microextraction* / methods
Plant Oils
Solvents / chemistry
Zinc

Substances

Chelating Agents
Deep Eutectic Solvents
Plant Oils
Solvents
Zinc