Table 1. K values in Ag–MB spectra.

Peak (cm−1)	K
532 nm
482	0.63
807	0.6
914	1.24
1,041	1.32
785 nm
447	3.91
771	7.67
1,394	27.75
1,621	34.45

MB, methylene blue; SERS, surface-enhanced Raman spectroscopy.

Calculated K values for selected peaks in the MB SERS spectrum excited by 532- and 785-nm lasers.