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Study on detection of carbaryl pesticides by using surface-enhance raman spectroscopy
Author(s)
Chakaja, Chaiwat
Limwichean, Saksorn
Nuntawong, Noppadon
Eiamchai, Pitak
Kalasung, Sukon
Nimittrakoolchai, On Uma
Date Issued
January 1, 2020
Type
Conference Paper
Abstract
In this research, the Ag nanorod structure was used as surface enhanced Raman scattering (SERS) chip which provides a sensitive detection signal for trace analysis of carbaryl pesticide. Carbaryl in solid form was measured by using the standard Raman spectroscopy to investigate the spectrum. Carbaryl at various concentrations was prepared in acetonitrile and dropped on the SERS chip for measuring Raman spectrum by a portable Raman spectrometer. The measurement condition including laser power and exposure time were studied to test the performance of SERS chip for carbaryl detection. From the results, the SERS chip useful for enhancing the Raman scattering signal which was increased depending on the laser power and exposure time. Carbaryl can be detected on SERS chip couple with the portable Raman spectrometer with the limit of detection of 10-5 M.
Citation
Key Engineering Materials, 853 KEM, 97-101, 2020