Abstract
Bisphenols are well-known endocrine disruptors that can easily migrate from plastic and can containers to food. Due to the complicated matrix and ultra-low concentrations of bisphenols in food, samples require extensive preparation before instrumental analysis. In this paper, an environmental sensitive microgel was employed as a sorbent for the preconcentration of four bisphenols, bisphenol A (BPA), bisphenol B (BPB), bisphenol E (BPE) and bisphenol F (BPF), from liquid food samples. Liquid chromatography with fluorescence detection (LC-FLD) was used for the quantification of bisphenols. By applying microgel solid-phase extraction procedure, the limits of detections achieved in liquid food samples can be lowered to 0.9 µg·L−1 for BPF and BPA, 2.3 µg·L−1 for BPE and 2.9 µg·L−1 for BPB. Only 5 mg of microgel was sufficient to achieve good recoveries (70.5–109%) with precision (RSD 0.21–5.01%, n = 3) for different analyzed liquid food samples spiked at concentration levels of 50 µg·L−1. In five out of twelve of the analyzed samples (pineapple, mandarin, peach, mushroom and pickles), they were contaminated with BPA, and the determined concentration was in the range of 6.2–22 µg·L−1; however, these results are below the specific migration limit (SML) set for BPA (50 µg·kg−1).
Highlights
Food contamination might be one of the most common methods of hazardous substances being ingested into a human body
Polymer particles were characterized by transmission (TEM) and scanning electron microscopy (SEM) measurements and, in the dried state, they had regular spherical morphology, with an average particle diameter of approximately 100 nm
The influence of various parameters affecting the sorption of bisphenols on the microgel sorbent was investigated and carefully discussed in the previous paper [28]
Summary
Food contamination might be one of the most common methods of hazardous substances being ingested into a human body. One of the sources of food contamination is inadequate packaging, which may result in the migration of chemical compounds [1]. Among these substances are bisphenols, which are often employed in the production of polycarbonate and epoxy resins. Bisphenol A is linked to a variety of reproductive and cardiovascular diseases [4,7,8] and the development of many types of cancer (including lung, breast and prostate cancer) [9,10].
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
