A novel reduced graphene oxide based nanocomposite for the determination of trace amounts of patulin

In this work, gold and copper sulfide-zinc sulfide nanoparticles were synthesized on reduced graphene oxide magnetic substrate. Then characterization of the synthesized rGO/CuS-ZnS/Au/Fe۳O۴ nanocomposite was made by various techniques such as Field emission scanning electron microscopy and X-ray diffraction. The synthesized adsorbent was used for preconcentration of patulin using magnetic solid phase extraction and ultra high performance liquid chromatography. Different factors may be affected on extraction including pH, adsorbent amount, extraction time, type and volume of eluent solvent, salt increase, desorption time and interference species were studied and optimized.

کلیدواژه ها:

Magnetic nanocomposite ، Patulin ، magnetic solid phase extraction