Khan Wajid Ali, Arain Muhammad Balal, Soylak Mustafa
Department of Chemistry, Abdul Wali Khan University Mardan, 23200, KPK, Pakistan.
Department of Chemistry, University of Karachi, 75270, Karachi, Sindh, Pakistan.
Food Chem Toxicol. 2020 Nov;145:111704. doi: 10.1016/j.fct.2020.111704. Epub 2020 Aug 25.
In the last few years, nanomaterials are widely used sorbents for the extraction of heavy metals in food samples. The nanomaterials have a larger surface area and show high selectivity, fast adsorption capability, and high efficiency for food contaminants (heavy metals). Carbon nanomaterials (CNMs), magnetic nanoparticles (MNPs), nano-imprinted polymers (NIPs), nano-based metal-organic frameworks (N-MOFs), and silica nanoparticles (SiNPs) are most prominent nanomaterials used in the preconcentration and determination of heavy metals. The most popular sorbent-based techniques for the extraction of heavy metals are solid phase extraction (SPE) and solid phase microextraction (SPME). The use of these nanomaterial sorbents increases the extraction efficiency of both techniques. This review summarizes the nanomaterial sorbents (published 2015 to May-2020) used in solid phase extraction (SPE) and solid phase microextraction (SPME) for heavy metals extraction in food.
在过去几年中，纳米材料作为吸附剂被广泛用于食品样品中重金属的萃取。纳米材料具有更大的表面积，对食品污染物（重金属）表现出高选择性、快速吸附能力和高效性。碳纳米材料（CNM）、磁性纳米颗粒（MNP）、纳米印迹聚合物（NIP）、纳米基金属有机框架（N-MOF）和二氧化硅纳米颗粒（SiNP）是用于重金属预富集和测定的最突出的纳米材料。用于萃取重金属的最流行的基于吸附剂的技术是固相萃取（SPE）和固相微萃取（SPME）。这些纳米材料吸附剂的使用提高了这两种技术的萃取效率。本综述总结了2015年至2020年5月期间用于食品中重金属萃取的固相萃取（SPE）和固相微萃取（SPME）中的纳米材料吸附剂。
