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Application of Surface-Enhanced Raman Spectroscopy (SERS) for the Carbendazim in Astragalus
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This study developed preliminary semi-quantitation methods for determine the carbendazim in astragalus using SERS (with 785 nm laser excitation).
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For carbendazim, Raman shifts were observed at 624, 771, 1003, 1222, 1269, 1459, and 1514 cm-1.
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The carbendazim residue in Astragalus was particularly identified at 771 and 1222 cm-1; the calibration curves could be developed by a linear equation (R2>0.97) or the Hill equation (R2>0.99).
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