Table 1.

For ${\lambda }_{exc}$ = 785 nm, and the four Raman shifts (RS) of thiophenol, ${\lambda }_{Raman}$ coinciding with RS, the intensities $I_{Raman}$ and $I_{SERS}$, relative standard deviations (RSDs) coinciding with $I_{SERS}$, EF obtained with Equation (1) and EF values (in arbitrary unit, see Equation (5)) calculated with the $E^4$ model are tabulated.

Number	RS (cm${}^{-1}$)	${\mathit{\lambda }}_{\mathit{R}\mathit{a}\mathit{m}\mathit{a}\mathit{n}}\left(\mathit{n}\mathit{m}\right)$	${\mathit{I}}_{\mathit{R}\mathit{a}\mathit{m}\mathit{a}\mathit{n}}$	${\mathit{I}}_{\mathit{S}\mathit{E}\mathit{R}\mathit{S}}$	RSD (%)	EF	EF (a.u.)
1	1000	852	79	3533	4.9	5.9 × 10${}^7$	0.0198
2	1025	854	32	1402	4.1	5.8 × 10${}^7$	0.0192
3	1075	857	55	2350	4.7	5.6 × 10${}^7$	0.0186
4	1575	896	18	724	5.0	5.3 × 10${}^7$	0.0170