30 March 2004 Inspection of pesticide residues on food by surface-enhanced Raman spectroscopy
Author Affiliations +
Proceedings Volume 5271, Monitoring Food Safety, Agriculture, and Plant Health; (2004) https://doi.org/10.1117/12.511941
Event: Optical Technologies for Industrial, Environmental, and Biological Sensing, 2003, Providence, RI, United States
Modern agriculture depends on pesticides to curb infestations, increase crop yield and to produce the quantity and quality of food demanded by today's society. However, potential pesticide residue contamination of food is of critical concern to the food industry and the regulators responsible for health and safety. For example, many pesticides kill insects by attacking the central nervous system, and the use of these pesticides above the EPA set tolerance levels (from 0.1 to 50 ppm) could pose a threat to humans, in particular infants. Unfortunately, rapid, chemical analysis of pesticide residues is unavailable, and only a very small fraction of foods are inspected. The greatest concern is food imported from nations that simply ignore US regulations. In an effort to address this need, we have been developing a simple device to collect residues from food surfaces, perform a rapid chemical separation, and detect and identify pesticides by surface-enhanced Raman spectroscopy (SERS). Capillaries are coated with a metal-doped sol-gel that both separates chemicals and generates SER spectra when irradiated. SERS of pesticides at ppm concentrations, and a preliminary product to aid inspectors is presented.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chetan Shende, Chetan Shende, Alan Gift, Alan Gift, Frank Inscore, Frank Inscore, Paul Maksymiuk, Paul Maksymiuk, Stuart Farquharson, Stuart Farquharson, "Inspection of pesticide residues on food by surface-enhanced Raman spectroscopy", Proc. SPIE 5271, Monitoring Food Safety, Agriculture, and Plant Health, (30 March 2004); doi: 10.1117/12.511941; https://doi.org/10.1117/12.511941


Astronaut health monitoring
Proceedings of SPIE (October 22 2006)
Five minute analysis of chemotherapy drugs in saliva
Proceedings of SPIE (October 16 2006)
Ten minute analysis of drugs and metabolites in saliva by...
Proceedings of SPIE (November 11 2005)
SERS sample vials based on sol gel process for trace...
Proceedings of SPIE (March 12 2001)

Back to Top