Novel Ag-coated nanofibers prepared by electrospraying as a SERS platform for ultrasensitive and selective detection of nitrite in food

•An Ag-coated nanofiber SERS platform was prepared for rapid nitrite detection.•Electrospraying technique was firstly used to assemble SERS platform.•The Ag-coated nanofiber SERS platform has good homogeneity and reproducibility.•The EF and the LOD was 2.635 × 108, 2.216 × 10−12 M, respectively.•The...

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