Rapid Detection of Paraquat Pesticide in Honey Using SERS-Based Portable Nanosensing Platform

Rapid determination of trace pesticides in complex food matrices such as honey has been a challenge for sensors research community due to interference signal from the food matrix. In this letter, an optical nanosensing platform to rapidly detect traces of paraquat pesticide in honey is reported. To...

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Bibliographic Details
Published in:IEEE sensors letters 2023-10, Vol.7 (10), p.1-4
Main Authors: Singh, Sarvar, Bano, Saira, Keshi, Sambit K., Singh, Ujjwal, Agarwal, Ajay
Format: Article
Language:English
Subjects:
and Safe (QuEChERS)
Cheap
Correlation coefficients
Easy
Effective
Food
Interference
Nanoparticles
Paraquat
Pesticides
Quick
Rugged
Sensor applications
Sensor phenomena and characterization
Sensors
Silicon
Surface Enhanced Raman Scattering (SERS)
Surface morphology
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Summary:Rapid determination of trace pesticides in complex food matrices such as honey has been a challenge for sensors research community due to interference signal from the food matrix. In this letter, an optical nanosensing platform to rapidly detect traces of paraquat pesticide in honey is reported. To eliminate the signal interference from honey matrix, Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) method was employed to isolate paraquat from honey. The QuEChERS method improved the sensor efficacy and enabled the detection of paraquat with limit of detection (LOD) as low as 0.075 mg/kg (75 ppb) in honey. The Raman signal intensity at 1648 cm −1 peak showed a linear relationship with increasing paraquat concentration and exhibited a correlation coefficient R 2 equal to 0.9986. The reported method is suitable for deployment in point-of-need applications.
ISSN:2475-1472
2475-1472
DOI:10.1109/LSENS.2023.3312995