Recent application of magnetic solid phase extraction for food safety analysis

Magnetic solid-phase extraction (MSPE), an emerging sample pretreatment technique, has received much attention because of its environment friendliness, rapid separation process, excellent adsorption efficiency, and easily automated assay. This paper reviews the nature of MSPE, and the types and preparation of magnetic adsorbents. It also discusses recent application of MSPE to the analysis of trace contaminants in food samples, such as pesticides and veterinary drug residuals, polymer additives, and heavy metals ions. The future development trends of MSPE in food safety analysis are also investigated. High efficiency, low cost, and environmental-friendly food safety detection techniques are expected with the application of MSPE.