Overview
Ali and colleagues developed a screen-printed electrode (SPE) modified with graphene oxide cross-linked by N-hydroxysuccinimide and decorated with gold nanoflowers (AuNFs) for the electrochemical detection of chloramphenicol. Gold is the analytical reagent providing electrochemical signal amplification; it is not measured as a food contaminant. Chloramphenicol is an antibiotic banned in food-producing animals in the EU (zero MRL), making sub-ppb detection capability relevant to residue surveillance in animal-derived foods.
Key numbers
LOD: 1 nM chloramphenicol. Linear range: 0.05 to 100 µM. RSD 4.0% (n=3). Sensor validated in spiked poultry feed, milk, honey, egg, blood serum, and powdered milk matrices with recoveries reported.
Implications for the wiki
This paper documents gold nanoparticle/nanoflower platforms as a detection tool for veterinary antibiotic residues in food, relevant to Gold as a section on AuNP analytical applications. No food occurrence data for gold or any heavy metal are provided.
Related evidence
Update history
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