Rapid Quantitative Determination of Multiple Pesticide Residues in Mango Fruits by Surface-Enhanced Raman Spectroscopy

Imidacloprid, acephate, and carbaryl are common insecticides that extensively used in planting mango, a well-known fruit Vietnam, to ease mango hopper issues. The accurate detection of pesticide residues is critical for export meet quality criteria. This study developed novel SERS platform by using polydimethylsiloxane (PDMS) simulate the rose petal structure incorporated with silver coating layer nanoparticles (AgNPs) detect imidacloprid, fruits. In this paper, PDMS/Ag-AgNPs replica was considered most efficient substrate measurement an EF 4.7 × 107. Raman spectra three obtained from were clearly observed their characteristic peaks 1105 cm−1 1083 cm−1, 1579 727 1378 carbaryl. application quantitative analysis pesticides evaluated. As result, limit 0.02 mg/kg 5 10−5 10−3 result also revealed sample within acceptable limit. suggested possibility rapid quantification not only but many other agricultural products.