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A - Silver-Gold Hybrid Substrate
B - Silver Substrate
C - Raman spectrum
Pioglitazone 10-3 M

The graph shows the difference between intensity of SERS signals of 10-3 M Pioglitazone on Silver SERSitive Substrate, Silver-Gold Hybrid Substrate and Raman spectrum.

Laser wavelength: 785 nm
Laser power: 8mW
Integration time: 5 second
Raman Spectrometer: B&WTEK
Lens magnification: 50x
Sampling method: immersion
Substrate used: Silver, Silver-Gold Hybrid