An Efficient 3D Adsorbent Foam Based on Graphene Oxide/Ago Nanoparticles for Rapid Vortex-Assisted Floating Solid Phase Extraction of Bisphenol a in Canned Food Products Publisher Pubmed

Summary: How much BPA hides in canned foods? A study built GO/AgO@Ni foam and used vortex-assisted solid phase extraction to measure BPA at sub μg/kg levels with high recovery. #FoodSafety #AnalyticalChemistry

Shirani M¹ ; Aslani A² ; Sepahi S³ ; Parandi E⁴ ; Motamedi A³ ; Jahanmard E³ ; Nodeh HR⁵ ; Akbariadergani B⁶
Source: Analytical Methods Published:2022

Abstract

In this study, a three-dimensional adsorbent was developed based on graphene oxide/AgO nanoparticles over interconnected nickel foam (GO/AgO@Ni foam) for rapid and efficient vortex assisted floating solid phase extraction of bisphenol A in canned food products prior to high performance liquid chromatography with a fluorescence detector. The analytical techniques scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and Fourier transform infrared (FT-IR) were used for characterization of the synthetized GO/AgO@Ni foam. The effect of proficiency factors including pH, foam size, vortexing time, salt addition, sample volume, desorption type and volume, and desorption time on the extraction efficiency of bisphenol A were explored through the matrix match method. Under the above experimental conditions, the figures of merit of the method were acquired as LODs (S/N = 3) of 0.18-0.84 μg kg−1, LOQs of 0.61-2.81 μg kg−1 (S/N = 10), linear ranges of 0.5-500 μg kg−1, and enrichment factors of 235.5-244.9. The inter-day precision values (RSD%, n = 7) of 2.5-3.6 and the intra-day precision (%) of (5 days and seven replicates for each day) 2.8-3.8 were achieved for bisphenol A at a concentration of 50 μg kg−1. The relative recoveries of 94.0% to 99.6% were obtained for the canned food samples. © 2022 The Royal Society of Chemistry.